diff --git a/internal/pkg/resourcemanager/resourcemanager.go b/internal/pkg/resourcemanager/resourcemanager.go
new file mode 100644
index 0000000..389e09e
--- /dev/null
+++ b/internal/pkg/resourcemanager/resourcemanager.go
@@ -0,0 +1,1488 @@
+/*
+ * Copyright 2019-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//Package resourcemanager provides the utility for managing resources
+package resourcemanager
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strconv"
+	"sync"
+	"time"
+
+	"github.com/opencord/voltha-openolt-adapter/internal/pkg/olterrors"
+
+	"github.com/opencord/voltha-lib-go/v3/pkg/db"
+	"github.com/opencord/voltha-lib-go/v3/pkg/db/kvstore"
+	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+	ponrmgr "github.com/opencord/voltha-lib-go/v3/pkg/ponresourcemanager"
+	ofp "github.com/opencord/voltha-protos/v3/go/openflow_13"
+	"github.com/opencord/voltha-protos/v3/go/openolt"
+)
+
+const (
+	KvstoreTimeout = 5 * time.Second
+	BasePathKvStore = "service/voltha/openolt/{%s}"
+	TpIDPathSuffix = "{%d,%d,%d}/tp_id"
+	MeterIDPathSuffix = "{%d,%d,%d}/{%d}/meter_id/{%s}"
+	NnniIntfID = "nniintfids"
+	OnuPacketINPathPrefix = "onu_packetin/{%d,%d,%d"
+	OnuPacketINPath = OnuPacketINPathPrefix + ",%d,%d}"
+	FlowIDsForGem = "flowids_per_gem/{%d}"
+	McastQueuesForIntf = "mcast_qs_for_int"
+	FlowGroup = "flow_groups/{%d}"
+	FlowGroupCached = "flow_groups_cached/{%d}"
+)
+
+// FlowInfo holds the flow information
+type FlowInfo struct {
+	Flow            *openolt.Flow
+	FlowStoreCookie uint64
+	FlowCategory    string
+	LogicalFlowID   uint64
+}
+
+// OnuGemInfo holds onu information along with gem port list and uni port list
+type OnuGemInfo struct {
+	OnuID        uint32
+	SerialNumber string
+	IntfID       uint32
+	GemPorts     []uint32
+	UniPorts     []uint32
+}
+
+// PacketInInfoKey is the key for packet in gemport
+type PacketInInfoKey struct {
+	IntfID      uint32
+	OnuID       uint32
+	LogicalPort uint32
+	VlanID      uint16
+	Priority    uint8
+}
+
+// GroupInfo holds group information
+type GroupInfo struct {
+	GroupID  uint32
+	OutPorts []uint32
+}
+
+// OpenOltResourceMgr holds resource related information as provided below for each field
+type OpenOltResourceMgr struct {
+	DeviceID   string      // OLT device id
+	Address    string      // Host and port of the kv store to connect to
+	Args       string      // args
+	KVStore    *db.Backend // backend kv store connection handle
+	DeviceType string
+	DevInfo    *openolt.DeviceInfo // device information
+	ResourceMgrs map[uint32]*ponrmgr.PONResourceManager
+
+	GemPortIDMgmtLock []sync.RWMutex
+	AllocIDMgmtLock []sync.RWMutex
+	OnuIDMgmtLock []sync.RWMutex
+	FlowIDMgmtLock sync.RWMutex
+
+	flowIDToGemInfoLock sync.RWMutex
+}
+
+func newKVClient(ctx context.Context, storeType string, address string, timeout time.Duration) (kvstore.Client, error) {
+	logger.Infow(ctx, "kv-store-type", log.Fields{"store": storeType})
+	switch storeType {
+	case "consul":
+		return kvstore.NewConsulClient(ctx, address, timeout)
+	case "etcd":
+		return kvstore.NewEtcdClient(ctx, address, timeout, log.FatalLevel)
+	}
+	return nil, errors.New("unsupported-kv-store")
+}
+
+// SetKVClient sets the KV client and return a kv backend
+func SetKVClient(ctx context.Context, backend string, addr string, DeviceID string) *db.Backend {
+	kvClient, err := newKVClient(ctx, backend, addr, KvstoreTimeout)
+	if err != nil {
+		logger.Fatalw(ctx, "Failed to init KV client\n", log.Fields{"err": err})
+		return nil
+	}
+
+	kvbackend := &db.Backend{
+		Client:     kvClient,
+		StoreType:  backend,
+		Address:    addr,
+		Timeout:    KvstoreTimeout,
+		PathPrefix: fmt.Sprintf(BasePathKvStore, DeviceID)}
+
+	return kvbackend
+}
+
+// NewResourceMgr init a New resource manager instance which in turn instantiates pon resource manager
+// instances according to technology. Initializes the default resource ranges for all
+// the resources.
+func NewResourceMgr(ctx context.Context, deviceID string, KVStoreAddress string, kvStoreType string, deviceType string, devInfo *openolt.DeviceInfo) *OpenOltResourceMgr {
+	var ResourceMgr OpenOltResourceMgr
+	logger.Debugf(ctx, "Init new resource manager , address: %s, device-id: %s", KVStoreAddress, deviceID)
+	ResourceMgr.Address = KVStoreAddress
+	ResourceMgr.DeviceType = deviceType
+	ResourceMgr.DevInfo = devInfo
+	NumPONPorts := devInfo.GetPonPorts()
+
+	Backend := kvStoreType
+	ResourceMgr.KVStore = SetKVClient(ctx, Backend, ResourceMgr.Address, deviceID)
+	if ResourceMgr.KVStore == nil {
+		logger.Error(ctx, "Failed to setup KV store")
+	}
+	Ranges := make(map[string]*openolt.DeviceInfo_DeviceResourceRanges)
+	RsrcMgrsByTech := make(map[string]*ponrmgr.PONResourceManager)
+	ResourceMgr.ResourceMgrs = make(map[uint32]*ponrmgr.PONResourceManager)
+
+	ResourceMgr.AllocIDMgmtLock = make([]sync.RWMutex, NumPONPorts)
+	ResourceMgr.GemPortIDMgmtLock = make([]sync.RWMutex, NumPONPorts)
+	ResourceMgr.OnuIDMgmtLock = make([]sync.RWMutex, NumPONPorts)
+
+
+	/*
+	   If a legacy driver returns protobuf without any ranges,s synthesize one from
+	   the legacy global per-device information. This, in theory, is temporary until
+	   the legacy drivers are upgrade to support pool ranges.
+	*/
+	if devInfo.Ranges == nil {
+		var ranges openolt.DeviceInfo_DeviceResourceRanges
+		ranges.Technology = devInfo.GetTechnology()
+
+		var index uint32
+		for index = 0; index < NumPONPorts; index++ {
+			ranges.IntfIds = append(ranges.IntfIds, index)
+		}
+
+		var Pool openolt.DeviceInfo_DeviceResourceRanges_Pool
+		Pool.Type = openolt.DeviceInfo_DeviceResourceRanges_Pool_ONU_ID
+		Pool.Start = devInfo.OnuIdStart
+		Pool.End = devInfo.OnuIdEnd
+		Pool.Sharing = openolt.DeviceInfo_DeviceResourceRanges_Pool_DEDICATED_PER_INTF
+		onuPool := Pool
+		ranges.Pools = append(ranges.Pools, &onuPool)
+
+		Pool.Type = openolt.DeviceInfo_DeviceResourceRanges_Pool_ALLOC_ID
+		Pool.Start = devInfo.AllocIdStart
+		Pool.End = devInfo.AllocIdEnd
+		Pool.Sharing = openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH
+		allocPool := Pool
+		ranges.Pools = append(ranges.Pools, &allocPool)
+
+		Pool.Type = openolt.DeviceInfo_DeviceResourceRanges_Pool_GEMPORT_ID
+		Pool.Start = devInfo.GemportIdStart
+		Pool.End = devInfo.GemportIdEnd
+		Pool.Sharing = openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH
+		gemPool := Pool
+		ranges.Pools = append(ranges.Pools, &gemPool)
+
+		Pool.Type = openolt.DeviceInfo_DeviceResourceRanges_Pool_FLOW_ID
+		Pool.Start = devInfo.FlowIdStart
+		Pool.End = devInfo.FlowIdEnd
+		Pool.Sharing = openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH
+		ranges.Pools = append(ranges.Pools, &Pool)
+		// Add to device info
+		devInfo.Ranges = append(devInfo.Ranges, &ranges)
+	}
+
+	var GlobalPONRsrcMgr *ponrmgr.PONResourceManager
+	var err error
+	for _, TechRange := range devInfo.Ranges {
+		technology := TechRange.Technology
+		logger.Debugf(ctx, "Device info technology %s", technology)
+		Ranges[technology] = TechRange
+
+		RsrcMgrsByTech[technology], err = ponrmgr.NewPONResourceManager(ctx, technology, deviceType, deviceID,
+			Backend, ResourceMgr.Address)
+		if err != nil {
+			logger.Errorf(ctx, "Failed to create pon resource manager instance for technology %s", technology)
+			return nil
+		}
+		// resource_mgrs_by_tech[technology] = resource_mgr
+		if GlobalPONRsrcMgr == nil {
+			GlobalPONRsrcMgr = RsrcMgrsByTech[technology]
+		}
+		for _, IntfID := range TechRange.IntfIds {
+			ResourceMgr.ResourceMgrs[uint32(IntfID)] = RsrcMgrsByTech[technology]
+		}
+		// self.initialize_device_resource_range_and_pool(resource_mgr, global_resource_mgr, arange)
+		InitializeDeviceResourceRangeAndPool(ctx, RsrcMgrsByTech[technology], GlobalPONRsrcMgr,
+			TechRange, devInfo)
+	}
+	for _, PONRMgr := range RsrcMgrsByTech {
+		_ = PONRMgr.InitDeviceResourcePool(ctx)
+	}
+	logger.Info(ctx, "Initialization of  resource manager success!")
+	return &ResourceMgr
+}
+
+// InitializeDeviceResourceRangeAndPool initializes the resource range pool according to the sharing type, then apply
+// device specific information. If KV doesn't exist
+// or is broader than the device, the device's information will
+// dictate the range limits
+func InitializeDeviceResourceRangeAndPool(ctx context.Context, ponRMgr *ponrmgr.PONResourceManager, globalPONRMgr *ponrmgr.PONResourceManager,
+	techRange *openolt.DeviceInfo_DeviceResourceRanges, devInfo *openolt.DeviceInfo) {
+
+
+	logger.Debugf(ctx, "Resource range pool init for technology %s", ponRMgr.Technology)
+	status := ponRMgr.InitResourceRangesFromKVStore(ctx)
+	if !status {
+		logger.Debugf(ctx, "Failed to load resource ranges from KV store for tech %s", ponRMgr.Technology)
+	}
+
+	/*
+	   Then apply device specific information. If KV doesn't exist
+	   or is broader than the device, the device's information will
+	   dictate the range limits
+	*/
+	logger.Debugw(ctx, "Using device info to init pon resource ranges", log.Fields{"Tech": ponRMgr.Technology})
+
+	ONUIDStart := devInfo.OnuIdStart
+	ONUIDEnd := devInfo.OnuIdEnd
+	ONUIDShared := openolt.DeviceInfo_DeviceResourceRanges_Pool_DEDICATED_PER_INTF
+	ONUIDSharedPoolID := uint32(0)
+	AllocIDStart := devInfo.AllocIdStart
+	AllocIDEnd := devInfo.AllocIdEnd
+	AllocIDShared := openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH // TODO EdgeCore/BAL limitation
+	AllocIDSharedPoolID := uint32(0)
+	GEMPortIDStart := devInfo.GemportIdStart
+	GEMPortIDEnd := devInfo.GemportIdEnd
+	GEMPortIDShared := openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH // TODO EdgeCore/BAL limitation
+	GEMPortIDSharedPoolID := uint32(0)
+	FlowIDStart := devInfo.FlowIdStart
+	FlowIDEnd := devInfo.FlowIdEnd
+	FlowIDShared := openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH // TODO EdgeCore/BAL limitation
+	FlowIDSharedPoolID := uint32(0)
+
+	var FirstIntfPoolID uint32
+	var SharedPoolID uint32
+
+	/*
+	 * As a zero check is made against SharedPoolID to check whether the resources are shared across all intfs
+	 * if resources are shared across interfaces then SharedPoolID is given a positive number.
+	 */
+	for _, FirstIntfPoolID = range techRange.IntfIds {
+		// skip the intf id 0
+		if FirstIntfPoolID == 0 {
+			continue
+		}
+		break
+	}
+
+	for _, RangePool := range techRange.Pools {
+		if RangePool.Sharing == openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH {
+			SharedPoolID = FirstIntfPoolID
+		} else if RangePool.Sharing == openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_SAME_TECH {
+			SharedPoolID = FirstIntfPoolID
+		} else {
+			SharedPoolID = 0
+		}
+		if RangePool.Type == openolt.DeviceInfo_DeviceResourceRanges_Pool_ONU_ID {
+			ONUIDStart = RangePool.Start
+			ONUIDEnd = RangePool.End
+			ONUIDShared = RangePool.Sharing
+			ONUIDSharedPoolID = SharedPoolID
+		} else if RangePool.Type == openolt.DeviceInfo_DeviceResourceRanges_Pool_ALLOC_ID {
+			AllocIDStart = RangePool.Start
+			AllocIDEnd = RangePool.End
+			AllocIDShared = RangePool.Sharing
+			AllocIDSharedPoolID = SharedPoolID
+		} else if RangePool.Type == openolt.DeviceInfo_DeviceResourceRanges_Pool_GEMPORT_ID {
+			GEMPortIDStart = RangePool.Start
+			GEMPortIDEnd = RangePool.End
+			GEMPortIDShared = RangePool.Sharing
+			GEMPortIDSharedPoolID = SharedPoolID
+		} else if RangePool.Type == openolt.DeviceInfo_DeviceResourceRanges_Pool_FLOW_ID {
+			FlowIDStart = RangePool.Start
+			FlowIDEnd = RangePool.End
+			FlowIDShared = RangePool.Sharing
+			FlowIDSharedPoolID = SharedPoolID
+		}
+	}
+
+	logger.Debugw(ctx, "Device info init", log.Fields{"technology": techRange.Technology,
+		"onu_id_start": ONUIDStart, "onu_id_end": ONUIDEnd, "onu_id_shared_pool_id": ONUIDSharedPoolID,
+		"alloc_id_start": AllocIDStart, "alloc_id_end": AllocIDEnd,
+		"alloc_id_shared_pool_id": AllocIDSharedPoolID,
+		"gemport_id_start":        GEMPortIDStart, "gemport_id_end": GEMPortIDEnd,
+		"gemport_id_shared_pool_id": GEMPortIDSharedPoolID,
+		"flow_id_start":             FlowIDStart,
+		"flow_id_end_idx":           FlowIDEnd,
+		"flow_id_shared_pool_id":    FlowIDSharedPoolID,
+		"intf_ids":                  techRange.IntfIds,
+		"uni_id_start":              0,
+		"uni_id_end_idx":            1, /*MaxUNIIDperONU()*/
+	})
+
+	ponRMgr.InitDefaultPONResourceRanges(ctx, ONUIDStart, ONUIDEnd, ONUIDSharedPoolID,
+		AllocIDStart, AllocIDEnd, AllocIDSharedPoolID,
+		GEMPortIDStart, GEMPortIDEnd, GEMPortIDSharedPoolID,
+		FlowIDStart, FlowIDEnd, FlowIDSharedPoolID, 0, 1,
+		devInfo.PonPorts, techRange.IntfIds)
+
+
+	if ONUIDShared == openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH {
+		globalPONRMgr.UpdateRanges(ctx, ponrmgr.ONU_ID_START_IDX, ONUIDStart, ponrmgr.ONU_ID_END_IDX, ONUIDEnd,
+			"", 0, nil)
+		ponRMgr.UpdateRanges(ctx, ponrmgr.ONU_ID_START_IDX, ONUIDStart, ponrmgr.ONU_ID_END_IDX, ONUIDEnd,
+			"", 0, globalPONRMgr)
+	}
+	if AllocIDShared == openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH {
+		globalPONRMgr.UpdateRanges(ctx, ponrmgr.ALLOC_ID_START_IDX, AllocIDStart, ponrmgr.ALLOC_ID_END_IDX, AllocIDEnd,
+			"", 0, nil)
+
+		ponRMgr.UpdateRanges(ctx, ponrmgr.ALLOC_ID_START_IDX, AllocIDStart, ponrmgr.ALLOC_ID_END_IDX, AllocIDEnd,
+			"", 0, globalPONRMgr)
+	}
+	if GEMPortIDShared == openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH {
+		globalPONRMgr.UpdateRanges(ctx, ponrmgr.GEMPORT_ID_START_IDX, GEMPortIDStart, ponrmgr.GEMPORT_ID_END_IDX, GEMPortIDEnd,
+			"", 0, nil)
+		ponRMgr.UpdateRanges(ctx, ponrmgr.GEMPORT_ID_START_IDX, GEMPortIDStart, ponrmgr.GEMPORT_ID_END_IDX, GEMPortIDEnd,
+			"", 0, globalPONRMgr)
+	}
+	if FlowIDShared == openolt.DeviceInfo_DeviceResourceRanges_Pool_SHARED_BY_ALL_INTF_ALL_TECH {
+		globalPONRMgr.UpdateRanges(ctx, ponrmgr.FLOW_ID_START_IDX, FlowIDStart, ponrmgr.FLOW_ID_END_IDX, FlowIDEnd,
+			"", 0, nil)
+		ponRMgr.UpdateRanges(ctx, ponrmgr.FLOW_ID_START_IDX, FlowIDStart, ponrmgr.FLOW_ID_END_IDX, FlowIDEnd,
+			"", 0, globalPONRMgr)
+	}
+
+	ponRMgr.UpdateRanges(ctx, ponrmgr.UNI_ID_START_IDX, 0, ponrmgr.UNI_ID_END_IDX /* TODO =OpenOltPlatform.MAX_UNIS_PER_ONU-1*/, 1, "", 0, nil)
+}
+
+// Delete clears used resources for the particular olt device being deleted
+func (RsrcMgr *OpenOltResourceMgr) Delete(ctx context.Context) error {
+	/* TODO
+	   def __del__(self):
+	           self.log.info("clearing-device-resource-pool")
+	           for key, resource_mgr in self.resource_mgrs.iteritems():
+	               resource_mgr.clear_device_resource_pool()
+
+	       def assert_pon_id_limit(self, pon_intf_id):
+	           assert pon_intf_id in self.resource_mgrs
+
+	       def assert_onu_id_limit(self, pon_intf_id, onu_id):
+	           self.assert_pon_id_limit(pon_intf_id)
+	           self.resource_mgrs[pon_intf_id].assert_resource_limits(onu_id, PONResourceManager.ONU_ID)
+
+	       @property
+	       def max_uni_id_per_onu(self):
+	           return 0 #OpenOltPlatform.MAX_UNIS_PER_ONU-1, zero-based indexing Uncomment or override to make default multi-uni
+
+	       def assert_uni_id_limit(self, pon_intf_id, onu_id, uni_id):
+	           self.assert_onu_id_limit(pon_intf_id, onu_id)
+	           self.resource_mgrs[pon_intf_id].assert_resource_limits(uni_id, PONResourceManager.UNI_ID)
+	*/
+	for _, rsrcMgr := range RsrcMgr.ResourceMgrs {
+		if err := rsrcMgr.ClearDeviceResourcePool(ctx); err != nil {
+			logger.Debug(ctx, "Failed to clear device resource pool")
+			return err
+		}
+	}
+	logger.Debug(ctx, "Cleared device resource pool")
+	return nil
+}
+
+// GetONUID returns the available OnuID for the given pon-port
+func (RsrcMgr *OpenOltResourceMgr) GetONUID(ctx context.Context, ponIntfID uint32) (uint32, error) {
+	RsrcMgr.OnuIDMgmtLock[ponIntfID].Lock()
+	defer RsrcMgr.OnuIDMgmtLock[ponIntfID].Unlock()
+
+	if _, ok := RsrcMgr.ResourceMgrs[ponIntfID]; !ok {
+		err := errors.New("invalid-pon-interface-" + strconv.Itoa(int(ponIntfID)))
+		return 0, err
+	}
+	ONUID, err := RsrcMgr.ResourceMgrs[ponIntfID].GetResourceID(ctx, ponIntfID,
+		ponrmgr.ONU_ID, 1)
+	if err != nil {
+		logger.Errorf(ctx, "Failed to get resource for interface %d for type %s",
+			ponIntfID, ponrmgr.ONU_ID)
+		return 0, err
+	}
+	if ONUID != nil {
+		RsrcMgr.ResourceMgrs[ponIntfID].InitResourceMap(ctx, fmt.Sprintf("%d,%d", ponIntfID, ONUID[0]))
+		return ONUID[0], err
+	}
+
+	return 0, err // return OnuID 0 on error
+}
+
+// GetFlowIDInfo returns the slice of flow info of the given pon-port
+// Note: For flows which trap from the NNI and not really associated with any particular
+// ONU (like LLDP), the onu_id and uni_id is set as -1. The intf_id is the NNI intf_id.
+func (RsrcMgr *OpenOltResourceMgr) GetFlowIDInfo(ctx context.Context, ponIntfID uint32, onuID int32, uniID int32, flowID uint32) *[]FlowInfo {
+	var flows []FlowInfo
+
+	FlowPath := fmt.Sprintf("%d,%d,%d", ponIntfID, onuID, uniID)
+	if err := RsrcMgr.ResourceMgrs[ponIntfID].GetFlowIDInfo(ctx, FlowPath, flowID, &flows); err != nil {
+		logger.Errorw(ctx, "Error while getting flows from KV store", log.Fields{"flowId": flowID})
+		return nil
+	}
+	if len(flows) == 0 {
+		logger.Debugw(ctx, "No flowInfo found in KV store", log.Fields{"flowPath": FlowPath})
+		return nil
+	}
+	return &flows
+}
+
+// GetCurrentFlowIDsForOnu fetches flow ID from the resource manager
+// Note: For flows which trap from the NNI and not really associated with any particular
+// ONU (like LLDP), the onu_id and uni_id is set as -1. The intf_id is the NNI intf_id.
+func (RsrcMgr *OpenOltResourceMgr) GetCurrentFlowIDsForOnu(ctx context.Context, PONIntfID uint32, ONUID int32, UNIID int32) []uint32 {
+
+	FlowPath := fmt.Sprintf("%d,%d,%d", PONIntfID, ONUID, UNIID)
+	if mgrs, exist := RsrcMgr.ResourceMgrs[PONIntfID]; exist {
+		return mgrs.GetCurrentFlowIDsForOnu(ctx, FlowPath)
+	}
+	return nil
+}
+
+// UpdateFlowIDInfo updates flow info for the given pon interface, onu id, and uni id
+// Note: For flows which trap from the NNI and not really associated with any particular
+// ONU (like LLDP), the onu_id and uni_id is set as -1. The intf_id is the NNI intf_id.
+func (RsrcMgr *OpenOltResourceMgr) UpdateFlowIDInfo(ctx context.Context, ponIntfID int32, onuID int32, uniID int32,
+	flowID uint32, flowData *[]FlowInfo) error {
+	FlowPath := fmt.Sprintf("%d,%d,%d", ponIntfID, onuID, uniID)
+	return RsrcMgr.ResourceMgrs[uint32(ponIntfID)].UpdateFlowIDInfoForOnu(ctx, FlowPath, flowID, *flowData)
+}
+
+// GetFlowID return flow ID for a given pon interface id, onu id and uni id
+func (RsrcMgr *OpenOltResourceMgr) GetFlowID(ctx context.Context, ponIntfID uint32, ONUID int32, uniID int32,
+	gemportID uint32,
+	flowStoreCookie uint64,
+	flowCategory string, vlanVid uint32, vlanPcp ...uint32) (uint32, error) {
+
+	var err error
+	FlowPath := fmt.Sprintf("%d,%d,%d", ponIntfID, ONUID, uniID)
+
+	RsrcMgr.FlowIDMgmtLock.Lock()
+	defer RsrcMgr.FlowIDMgmtLock.Unlock()
+
+	FlowIDs := RsrcMgr.ResourceMgrs[ponIntfID].GetCurrentFlowIDsForOnu(ctx, FlowPath)
+	if FlowIDs != nil {
+		logger.Debugw(ctx, "Found flowId(s) for this ONU", log.Fields{"pon": ponIntfID, "ONUID": ONUID, "uniID": uniID, "KVpath": FlowPath})
+		for _, flowID := range FlowIDs {
+			FlowInfo := RsrcMgr.GetFlowIDInfo(ctx, ponIntfID, int32(ONUID), int32(uniID), uint32(flowID))
+			er := getFlowIDFromFlowInfo(ctx, FlowInfo, flowID, gemportID, flowStoreCookie, flowCategory, vlanVid, vlanPcp...)
+			if er == nil {
+				logger.Debugw(ctx, "Found flowid for the vlan, pcp, and gem",
+					log.Fields{"flowID": flowID, "vlanVid": vlanVid, "vlanPcp": vlanPcp, "gemPortID": gemportID})
+				return flowID, er
+			}
+		}
+	}
+	logger.Debug(ctx, "No matching flows with flow cookie or flow category, allocating new flowid")
+	FlowIDs, err = RsrcMgr.ResourceMgrs[ponIntfID].GetResourceID(ctx, ponIntfID,
+		ponrmgr.FLOW_ID, 1)
+	if err != nil {
+		logger.Errorf(ctx, "Failed to get resource for interface %d for type %s",
+			ponIntfID, ponrmgr.FLOW_ID)
+		return uint32(0), err
+	}
+	if FlowIDs != nil {
+		_ = RsrcMgr.ResourceMgrs[ponIntfID].UpdateFlowIDForOnu(ctx, FlowPath, FlowIDs[0], true)
+		return FlowIDs[0], err
+	}
+
+	return 0, err
+}
+
+// GetAllocID return the first Alloc ID for a given pon interface id and onu id and then update the resource map on
+// the KV store with the list of alloc_ids allocated for the pon_intf_onu_id tuple
+// Currently of all the alloc_ids available, it returns the first alloc_id in the list for tha given ONU
+func (RsrcMgr *OpenOltResourceMgr) GetAllocID(ctx context.Context, intfID uint32, onuID uint32, uniID uint32) uint32 {
+
+	var err error
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", intfID, onuID, uniID)
+
+	RsrcMgr.AllocIDMgmtLock[intfID].Lock()
+	defer RsrcMgr.AllocIDMgmtLock[intfID].Unlock()
+
+	AllocID := RsrcMgr.ResourceMgrs[intfID].GetCurrentAllocIDForOnu(ctx, IntfOnuIDUniID)
+	if AllocID != nil {
+		// Since we support only one alloc_id for the ONU at the moment,
+		// return the first alloc_id in the list, if available, for that
+		// ONU.
+		logger.Debugw(ctx, "Retrieved alloc ID from pon resource mgr", log.Fields{"AllocID": AllocID})
+		return AllocID[0]
+	}
+	AllocID, err = RsrcMgr.ResourceMgrs[intfID].GetResourceID(ctx, intfID,
+		ponrmgr.ALLOC_ID, 1)
+
+	if AllocID == nil || err != nil {
+		logger.Error(ctx, "Failed to allocate alloc id")
+		return 0
+	}
+	err = RsrcMgr.ResourceMgrs[intfID].UpdateAllocIdsForOnu(ctx, IntfOnuIDUniID, AllocID)
+	if err != nil {
+		logger.Error(ctx, "Failed to update Alloc ID")
+		return 0
+	}
+	logger.Debugw(ctx, "Allocated new Tcont from pon resource mgr", log.Fields{"AllocID": AllocID})
+	return AllocID[0]
+}
+
+// UpdateAllocIdsForOnu updates alloc ids in kv store for a given pon interface id, onu id and uni id
+func (RsrcMgr *OpenOltResourceMgr) UpdateAllocIdsForOnu(ctx context.Context, ponPort uint32, onuID uint32, uniID uint32, allocID []uint32) error {
+
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", ponPort, onuID, uniID)
+	return RsrcMgr.ResourceMgrs[ponPort].UpdateAllocIdsForOnu(ctx, IntfOnuIDUniID,
+		allocID)
+}
+
+// GetCurrentGEMPortIDsForOnu returns gem ports for given pon interface , onu id and uni id
+func (RsrcMgr *OpenOltResourceMgr) GetCurrentGEMPortIDsForOnu(ctx context.Context, intfID uint32, onuID uint32,
+	uniID uint32) []uint32 {
+
+	/* Get gem ports for given pon interface , onu id and uni id. */
+
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", intfID, onuID, uniID)
+	return RsrcMgr.ResourceMgrs[intfID].GetCurrentGEMPortIDsForOnu(ctx, IntfOnuIDUniID)
+}
+
+// GetCurrentAllocIDsForOnu returns alloc ids for given pon interface and onu id
+func (RsrcMgr *OpenOltResourceMgr) GetCurrentAllocIDsForOnu(ctx context.Context, intfID uint32, onuID uint32, uniID uint32) []uint32 {
+
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", intfID, onuID, uniID)
+	AllocID := RsrcMgr.ResourceMgrs[intfID].GetCurrentAllocIDForOnu(ctx, IntfOnuIDUniID)
+	if AllocID != nil {
+		return AllocID
+	}
+	return []uint32{}
+}
+
+// RemoveAllocIDForOnu removes the alloc id for given pon interface, onu id, uni id and alloc id
+func (RsrcMgr *OpenOltResourceMgr) RemoveAllocIDForOnu(ctx context.Context, intfID uint32, onuID uint32, uniID uint32, allocID uint32) {
+	allocIDs := RsrcMgr.GetCurrentAllocIDsForOnu(ctx, intfID, onuID, uniID)
+	for i := 0; i < len(allocIDs); i++ {
+		if allocIDs[i] == allocID {
+			allocIDs = append(allocIDs[:i], allocIDs[i+1:]...)
+			break
+		}
+	}
+	err := RsrcMgr.UpdateAllocIdsForOnu(ctx, intfID, onuID, uniID, allocIDs)
+	if err != nil {
+		logger.Errorf(ctx, "Failed to Remove Alloc Id For Onu. IntfID %d onuID %d uniID %d allocID %d",
+			intfID, onuID, uniID, allocID)
+	}
+}
+
+// RemoveGemPortIDForOnu removes the gem port id for given pon interface, onu id, uni id and gem port id
+func (RsrcMgr *OpenOltResourceMgr) RemoveGemPortIDForOnu(ctx context.Context, intfID uint32, onuID uint32, uniID uint32, gemPortID uint32) {
+	gemPortIDs := RsrcMgr.GetCurrentGEMPortIDsForOnu(ctx, intfID, onuID, uniID)
+	for i := 0; i < len(gemPortIDs); i++ {
+		if gemPortIDs[i] == gemPortID {
+			gemPortIDs = append(gemPortIDs[:i], gemPortIDs[i+1:]...)
+			break
+		}
+	}
+	err := RsrcMgr.UpdateGEMPortIDsForOnu(ctx, intfID, onuID, uniID, gemPortIDs)
+	if err != nil {
+		logger.Errorf(ctx, "Failed to Remove Gem Id For Onu. IntfID %d onuID %d uniID %d gemPortId %d",
+			intfID, onuID, uniID, gemPortID)
+	}
+}
+
+// UpdateGEMportsPonportToOnuMapOnKVStore updates onu and uni id associated with the gem port to the kv store
+// This stored information is used when packet_indication is received and we need to derive the ONU Id for which
+// the packet arrived based on the pon_intf and gemport available in the packet_indication
+func (RsrcMgr *OpenOltResourceMgr) UpdateGEMportsPonportToOnuMapOnKVStore(ctx context.Context, gemPorts []uint32, PonPort uint32,
+	onuID uint32, uniID uint32) error {
+
+	/* Update onu and uni id associated with the gem port to the kv store. */
+	var IntfGEMPortPath string
+	Data := fmt.Sprintf("%d %d", onuID, uniID)
+	for _, GEM := range gemPorts {
+		IntfGEMPortPath = fmt.Sprintf("%d,%d", PonPort, GEM)
+		Val, err := json.Marshal(Data)
+		if err != nil {
+			logger.Error(ctx, "failed to Marshal")
+			return err
+		}
+
+		if err = RsrcMgr.KVStore.Put(ctx, IntfGEMPortPath, Val); err != nil {
+			logger.Errorf(ctx, "Failed to update resource %s", IntfGEMPortPath)
+			return err
+		}
+	}
+	return nil
+}
+
+// RemoveGEMportPonportToOnuMapOnKVStore removes the relationship between the gem port and pon port
+func (RsrcMgr *OpenOltResourceMgr) RemoveGEMportPonportToOnuMapOnKVStore(ctx context.Context, GemPort uint32, PonPort uint32) {
+	IntfGEMPortPath := fmt.Sprintf("%d,%d", PonPort, GemPort)
+	err := RsrcMgr.KVStore.Delete(ctx, IntfGEMPortPath)
+	if err != nil {
+		logger.Errorf(ctx, "Failed to Remove Gem port-Pon port to onu map on kv store. Gem %d PonPort %d", GemPort, PonPort)
+	}
+}
+
+// GetGEMPortID gets gem port id for a particular pon port, onu id and uni id and then update the resource map on
+// the KV store with the list of gemport_id allocated for the pon_intf_onu_id tuple
+func (RsrcMgr *OpenOltResourceMgr) GetGEMPortID(ctx context.Context, ponPort uint32, onuID uint32,
+	uniID uint32, NumOfPorts uint32) ([]uint32, error) {
+
+	/* Get gem port id for a particular pon port, onu id
+	   and uni id.
+	*/
+
+	var err error
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", ponPort, onuID, uniID)
+
+	RsrcMgr.GemPortIDMgmtLock[ponPort].Lock()
+	defer RsrcMgr.GemPortIDMgmtLock[ponPort].Unlock()
+
+	GEMPortList := RsrcMgr.ResourceMgrs[ponPort].GetCurrentGEMPortIDsForOnu(ctx, IntfOnuIDUniID)
+	if GEMPortList != nil {
+		return GEMPortList, nil
+	}
+
+	GEMPortList, err = RsrcMgr.ResourceMgrs[ponPort].GetResourceID(ctx, ponPort,
+		ponrmgr.GEMPORT_ID, NumOfPorts)
+	if err != nil && GEMPortList == nil {
+		logger.Errorf(ctx, "Failed to get gem port id for %s", IntfOnuIDUniID)
+		return nil, err
+	}
+
+	err = RsrcMgr.ResourceMgrs[ponPort].UpdateGEMPortIDsForOnu(ctx, IntfOnuIDUniID,
+		GEMPortList)
+	if err != nil {
+		logger.Errorf(ctx, "Failed to update GEM ports to kv store for %s", IntfOnuIDUniID)
+		return nil, err
+	}
+	_ = RsrcMgr.UpdateGEMportsPonportToOnuMapOnKVStore(ctx, GEMPortList, ponPort,
+		onuID, uniID)
+	return GEMPortList, err
+}
+
+// UpdateGEMPortIDsForOnu updates gemport ids on to the kv store for a given pon port, onu id and uni id
+func (RsrcMgr *OpenOltResourceMgr) UpdateGEMPortIDsForOnu(ctx context.Context, ponPort uint32, onuID uint32,
+	uniID uint32, GEMPortList []uint32) error {
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", ponPort, onuID, uniID)
+	return RsrcMgr.ResourceMgrs[ponPort].UpdateGEMPortIDsForOnu(ctx, IntfOnuIDUniID,
+		GEMPortList)
+
+}
+
+// FreeonuID releases(make free) onu id for a particular pon-port
+func (RsrcMgr *OpenOltResourceMgr) FreeonuID(ctx context.Context, intfID uint32, onuID []uint32) {
+
+	RsrcMgr.OnuIDMgmtLock[intfID].Lock()
+	defer RsrcMgr.OnuIDMgmtLock[intfID].Unlock()
+
+	RsrcMgr.ResourceMgrs[intfID].FreeResourceID(ctx, intfID, ponrmgr.ONU_ID, onuID)
+
+	/* Free onu id for a particular interface.*/
+	var IntfonuID string
+	for _, onu := range onuID {
+		IntfonuID = fmt.Sprintf("%d,%d", intfID, onu)
+		RsrcMgr.ResourceMgrs[intfID].RemoveResourceMap(ctx, IntfonuID)
+	}
+}
+
+// FreeFlowID returns the free flow id for a given interface, onu id and uni id
+func (RsrcMgr *OpenOltResourceMgr) FreeFlowID(ctx context.Context, IntfID uint32, onuID int32,
+	uniID int32, FlowID uint32) {
+	var IntfONUID string
+	var err error
+
+	RsrcMgr.FlowIDMgmtLock.Lock()
+	defer RsrcMgr.FlowIDMgmtLock.Unlock()
+
+	FlowIds := make([]uint32, 0)
+	FlowIds = append(FlowIds, FlowID)
+	IntfONUID = fmt.Sprintf("%d,%d,%d", IntfID, onuID, uniID)
+	err = RsrcMgr.ResourceMgrs[IntfID].UpdateFlowIDForOnu(ctx, IntfONUID, FlowID, false)
+	if err != nil {
+		logger.Errorw(ctx, "Failed to Update flow id  for", log.Fields{"intf": IntfONUID})
+	}
+	RsrcMgr.ResourceMgrs[IntfID].RemoveFlowIDInfo(ctx, IntfONUID, FlowID)
+
+	RsrcMgr.ResourceMgrs[IntfID].FreeResourceID(ctx, IntfID, ponrmgr.FLOW_ID, FlowIds)
+}
+
+// FreeFlowIDs releases the flow Ids
+func (RsrcMgr *OpenOltResourceMgr) FreeFlowIDs(ctx context.Context, IntfID uint32, onuID uint32,
+	uniID uint32, FlowID []uint32) {
+	RsrcMgr.FlowIDMgmtLock.Lock()
+	defer RsrcMgr.FlowIDMgmtLock.Unlock()
+
+	RsrcMgr.ResourceMgrs[IntfID].FreeResourceID(ctx, IntfID, ponrmgr.FLOW_ID, FlowID)
+
+	var IntfOnuIDUniID string
+	var err error
+	for _, flow := range FlowID {
+		IntfOnuIDUniID = fmt.Sprintf("%d,%d,%d", IntfID, onuID, uniID)
+		err = RsrcMgr.ResourceMgrs[IntfID].UpdateFlowIDForOnu(ctx, IntfOnuIDUniID, flow, false)
+		if err != nil {
+			logger.Errorw(ctx, "Failed to Update flow id for", log.Fields{"intf": IntfOnuIDUniID})
+		}
+		RsrcMgr.ResourceMgrs[IntfID].RemoveFlowIDInfo(ctx, IntfOnuIDUniID, flow)
+	}
+}
+
+// FreeAllocID frees AllocID on the PON resource pool and also frees the allocID association
+// for the given OLT device.
+func (RsrcMgr *OpenOltResourceMgr) FreeAllocID(ctx context.Context, IntfID uint32, onuID uint32,
+	uniID uint32, allocID uint32) {
+	RsrcMgr.AllocIDMgmtLock[IntfID].Lock()
+	defer RsrcMgr.AllocIDMgmtLock[IntfID].Unlock()
+
+	RsrcMgr.RemoveAllocIDForOnu(ctx, IntfID, onuID, uniID, allocID)
+	allocIDs := make([]uint32, 0)
+	allocIDs = append(allocIDs, allocID)
+	RsrcMgr.ResourceMgrs[IntfID].FreeResourceID(ctx, IntfID, ponrmgr.ALLOC_ID, allocIDs)
+}
+
+// FreeGemPortID frees GemPortID on the PON resource pool and also frees the gemPortID association
+// for the given OLT device.
+func (RsrcMgr *OpenOltResourceMgr) FreeGemPortID(ctx context.Context, IntfID uint32, onuID uint32,
+	uniID uint32, gemPortID uint32) {
+	RsrcMgr.GemPortIDMgmtLock[IntfID].Lock()
+	defer RsrcMgr.GemPortIDMgmtLock[IntfID].Unlock()
+
+	RsrcMgr.RemoveGemPortIDForOnu(ctx, IntfID, onuID, uniID, gemPortID)
+	gemPortIDs := make([]uint32, 0)
+	gemPortIDs = append(gemPortIDs, gemPortID)
+	RsrcMgr.ResourceMgrs[IntfID].FreeResourceID(ctx, IntfID, ponrmgr.GEMPORT_ID, gemPortIDs)
+}
+
+// FreePONResourcesForONU make the pon resources free for a given pon interface and onu id, and the clears the
+// resource map and the onuID associated with (pon_intf_id, gemport_id) tuple,
+func (RsrcMgr *OpenOltResourceMgr) FreePONResourcesForONU(ctx context.Context, intfID uint32, onuID uint32, uniID uint32) {
+
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", intfID, onuID, uniID)
+
+	RsrcMgr.AllocIDMgmtLock[intfID].Lock()
+	AllocIDs := RsrcMgr.ResourceMgrs[intfID].GetCurrentAllocIDForOnu(ctx, IntfOnuIDUniID)
+
+	RsrcMgr.ResourceMgrs[intfID].FreeResourceID(ctx, intfID,
+		ponrmgr.ALLOC_ID,
+		AllocIDs)
+	RsrcMgr.AllocIDMgmtLock[intfID].Unlock()
+
+	RsrcMgr.GemPortIDMgmtLock[intfID].Lock()
+	GEMPortIDs := RsrcMgr.ResourceMgrs[intfID].GetCurrentGEMPortIDsForOnu(ctx, IntfOnuIDUniID)
+	RsrcMgr.ResourceMgrs[intfID].FreeResourceID(ctx, intfID,
+		ponrmgr.GEMPORT_ID,
+		GEMPortIDs)
+	RsrcMgr.GemPortIDMgmtLock[intfID].Unlock()
+
+	RsrcMgr.FlowIDMgmtLock.Lock()
+	FlowIDs := RsrcMgr.ResourceMgrs[intfID].GetCurrentFlowIDsForOnu(ctx, IntfOnuIDUniID)
+	RsrcMgr.ResourceMgrs[intfID].FreeResourceID(ctx, intfID,
+		ponrmgr.FLOW_ID,
+		FlowIDs)
+	RsrcMgr.FlowIDMgmtLock.Unlock()
+
+	RsrcMgr.ResourceMgrs[intfID].RemoveResourceMap(ctx, IntfOnuIDUniID)
+	for _, GEM := range GEMPortIDs {
+		_ = RsrcMgr.KVStore.Delete(ctx, fmt.Sprintf("%d,%d", intfID, GEM))
+	}
+}
+
+// IsFlowCookieOnKVStore checks if the given flow cookie is present on the kv store
+// Returns true if the flow cookie is found, otherwise it returns false
+func (RsrcMgr *OpenOltResourceMgr) IsFlowCookieOnKVStore(ctx context.Context, ponIntfID uint32, onuID int32, uniID int32,
+	flowStoreCookie uint64) bool {
+
+	FlowPath := fmt.Sprintf("%d,%d,%d", ponIntfID, onuID, uniID)
+	FlowIDs := RsrcMgr.ResourceMgrs[ponIntfID].GetCurrentFlowIDsForOnu(ctx, FlowPath)
+	if FlowIDs != nil {
+		logger.Debugw(ctx, "Found flowId(s) for this ONU", log.Fields{"pon": ponIntfID, "onuID": onuID, "uniID": uniID, "KVpath": FlowPath})
+		for _, flowID := range FlowIDs {
+			FlowInfo := RsrcMgr.GetFlowIDInfo(ctx, ponIntfID, int32(onuID), int32(uniID), uint32(flowID))
+			if FlowInfo != nil {
+				logger.Debugw(ctx, "Found flows", log.Fields{"flows": *FlowInfo, "flowId": flowID})
+				for _, Info := range *FlowInfo {
+					if Info.FlowStoreCookie == flowStoreCookie {
+						logger.Debug(ctx, "Found flow matching with flowStore cookie", log.Fields{"flowId": flowID, "flowStoreCookie": flowStoreCookie})
+						return true
+					}
+				}
+			}
+		}
+	}
+	return false
+}
+
+// GetTechProfileIDForOnu fetches Tech-Profile-ID from the KV-Store for the given onu based on the path
+// This path is formed as the following: {IntfID, OnuID, UniID}/tp_id
+func (RsrcMgr *OpenOltResourceMgr) GetTechProfileIDForOnu(ctx context.Context, IntfID uint32, OnuID uint32, UniID uint32) []uint32 {
+	Path := fmt.Sprintf(TpIDPathSuffix, IntfID, OnuID, UniID)
+	var Data []uint32
+	Value, err := RsrcMgr.KVStore.Get(ctx, Path)
+	if err == nil {
+		if Value != nil {
+			Val, err := kvstore.ToByte(Value.Value)
+			if err != nil {
+				logger.Errorw(ctx, "Failed to convert into byte array", log.Fields{"error": err})
+				return Data
+			}
+			if err = json.Unmarshal(Val, &Data); err != nil {
+				logger.Error(ctx, "Failed to unmarshal", log.Fields{"error": err})
+				return Data
+			}
+		}
+	} else {
+		logger.Errorf(ctx, "Failed to get TP id from kvstore for path %s", Path)
+	}
+	logger.Debugf(ctx, "Getting TP id %d from path %s", Data, Path)
+	return Data
+
+}
+
+// RemoveTechProfileIDsForOnu deletes all tech profile ids from the KV-Store for the given onu based on the path
+// This path is formed as the following: {IntfID, OnuID, UniID}/tp_id
+func (RsrcMgr *OpenOltResourceMgr) RemoveTechProfileIDsForOnu(ctx context.Context, IntfID uint32, OnuID uint32, UniID uint32) error {
+	IntfOnuUniID := fmt.Sprintf(TpIDPathSuffix, IntfID, OnuID, UniID)
+	if err := RsrcMgr.KVStore.Delete(ctx, IntfOnuUniID); err != nil {
+		logger.Errorw(ctx, "Failed to delete techprofile id resource in KV store", log.Fields{"path": IntfOnuUniID})
+		return err
+	}
+	return nil
+}
+
+// RemoveTechProfileIDForOnu deletes a specific tech profile id from the KV-Store for the given onu based on the path
+// This path is formed as the following: {IntfID, OnuID, UniID}/tp_id
+func (RsrcMgr *OpenOltResourceMgr) RemoveTechProfileIDForOnu(ctx context.Context, IntfID uint32, OnuID uint32, UniID uint32, TpID uint32) error {
+	tpIDList := RsrcMgr.GetTechProfileIDForOnu(ctx, IntfID, OnuID, UniID)
+	for i, tpIDInList := range tpIDList {
+		if tpIDInList == TpID {
+			tpIDList = append(tpIDList[:i], tpIDList[i+1:]...)
+		}
+	}
+	IntfOnuUniID := fmt.Sprintf(TpIDPathSuffix, IntfID, OnuID, UniID)
+	Value, err := json.Marshal(tpIDList)
+	if err != nil {
+		logger.Error(ctx, "failed to Marshal")
+		return err
+	}
+	if err = RsrcMgr.KVStore.Put(ctx, IntfOnuUniID, Value); err != nil {
+		logger.Errorf(ctx, "Failed to update resource %s", IntfOnuUniID)
+		return err
+	}
+	return err
+}
+
+// UpdateTechProfileIDForOnu updates (put) already present tech-profile-id for the given onu based on the path
+// This path is formed as the following: {IntfID, OnuID, UniID}/tp_id
+func (RsrcMgr *OpenOltResourceMgr) UpdateTechProfileIDForOnu(ctx context.Context, IntfID uint32, OnuID uint32,
+	UniID uint32, TpID uint32) error {
+	var Value []byte
+	var err error
+
+	IntfOnuUniID := fmt.Sprintf(TpIDPathSuffix, IntfID, OnuID, UniID)
+
+	tpIDList := RsrcMgr.GetTechProfileIDForOnu(ctx, IntfID, OnuID, UniID)
+	for _, value := range tpIDList {
+		if value == TpID {
+			logger.Debugf(ctx, "TpID %d is already in tpIdList for the path %s", TpID, IntfOnuUniID)
+			return err
+		}
+	}
+	logger.Debugf(ctx, "updating tp id %d on path %s", TpID, IntfOnuUniID)
+	tpIDList = append(tpIDList, TpID)
+	Value, err = json.Marshal(tpIDList)
+	if err != nil {
+		logger.Error(ctx, "failed to Marshal")
+		return err
+	}
+	if err = RsrcMgr.KVStore.Put(ctx, IntfOnuUniID, Value); err != nil {
+		logger.Errorf(ctx, "Failed to update resource %s", IntfOnuUniID)
+		return err
+	}
+	return err
+}
+
+// UpdateMeterIDForOnu updates the meter id in the KV-Store for the given onu based on the path
+// This path is formed as the following: <(pon_id, onu_id, uni_id)>/<tp_id>/meter_id/<direction>
+func (RsrcMgr *OpenOltResourceMgr) UpdateMeterIDForOnu(ctx context.Context, Direction string, IntfID uint32, OnuID uint32,
+	UniID uint32, TpID uint32, MeterConfig *ofp.OfpMeterConfig) error {
+	var Value []byte
+	var err error
+
+	IntfOnuUniID := fmt.Sprintf(MeterIDPathSuffix, IntfID, OnuID, UniID, TpID, Direction)
+	Value, err = json.Marshal(*MeterConfig)
+	if err != nil {
+		logger.Error(ctx, "failed to Marshal meter config")
+		return err
+	}
+	if err = RsrcMgr.KVStore.Put(ctx, IntfOnuUniID, Value); err != nil {
+		logger.Errorf(ctx, "Failed to store meter into KV store %s", IntfOnuUniID)
+		return err
+	}
+	return err
+}
+
+// GetMeterIDForOnu fetches the meter id from the kv store for the given onu based on the path
+// This path is formed as the following: <(pon_id, onu_id, uni_id)>/<tp_id>/meter_id/<direction>
+func (RsrcMgr *OpenOltResourceMgr) GetMeterIDForOnu(ctx context.Context, Direction string, IntfID uint32, OnuID uint32,
+	UniID uint32, TpID uint32) (*ofp.OfpMeterConfig, error) {
+	Path := fmt.Sprintf(MeterIDPathSuffix, IntfID, OnuID, UniID, TpID, Direction)
+	var meterConfig ofp.OfpMeterConfig
+	Value, err := RsrcMgr.KVStore.Get(ctx, Path)
+	if err == nil {
+		if Value != nil {
+			logger.Debug(ctx, "Found meter in KV store", log.Fields{"Direction": Direction})
+			Val, er := kvstore.ToByte(Value.Value)
+			if er != nil {
+				logger.Errorw(ctx, "Failed to convert into byte array", log.Fields{"error": er})
+				return nil, er
+			}
+			if er = json.Unmarshal(Val, &meterConfig); er != nil {
+				logger.Error(ctx, "Failed to unmarshal meterconfig", log.Fields{"error": er})
+				return nil, er
+			}
+		} else {
+			logger.Debug(ctx, "meter-does-not-exists-in-KVStore")
+			return nil, err
+		}
+	} else {
+		logger.Errorf(ctx, "Failed to get Meter config from kvstore for path %s", Path)
+
+	}
+	return &meterConfig, err
+}
+
+// RemoveMeterIDForOnu deletes the meter id from the kV-Store for the given onu based on the path
+// This path is formed as the following: <(pon_id, onu_id, uni_id)>/<tp_id>/meter_id/<direction>
+func (RsrcMgr *OpenOltResourceMgr) RemoveMeterIDForOnu(ctx context.Context, Direction string, IntfID uint32, OnuID uint32,
+	UniID uint32, TpID uint32) error {
+	Path := fmt.Sprintf(MeterIDPathSuffix, IntfID, OnuID, UniID, TpID, Direction)
+	if err := RsrcMgr.KVStore.Delete(ctx, Path); err != nil {
+		logger.Errorf(ctx, "Failed to delete meter id %s from kvstore ", Path)
+		return err
+	}
+	return nil
+}
+
+func getFlowIDFromFlowInfo(ctx context.Context, FlowInfo *[]FlowInfo, flowID, gemportID uint32, flowStoreCookie uint64, flowCategory string,
+	vlanVid uint32, vlanPcp ...uint32) error {
+	if FlowInfo != nil {
+		for _, Info := range *FlowInfo {
+			if int32(gemportID) == Info.Flow.GemportId && flowCategory != "" && Info.FlowCategory == flowCategory {
+				logger.Debug(ctx, "Found flow matching with flow category", log.Fields{"flowId": flowID, "FlowCategory": flowCategory})
+				if Info.FlowCategory == "HSIA_FLOW" {
+					if err := checkVlanAndPbitEqualityForFlows(vlanVid, Info, vlanPcp[0]); err == nil {
+						return nil
+					}
+				}
+			}
+			if int32(gemportID) == Info.Flow.GemportId && flowStoreCookie != 0 && Info.FlowStoreCookie == flowStoreCookie {
+				if flowCategory != "" && Info.FlowCategory == flowCategory {
+					logger.Debug(ctx, "Found flow matching with flow category", log.Fields{"flowId": flowID, "FlowCategory": flowCategory})
+					return nil
+				}
+			}
+		}
+	}
+	logger.Debugw(ctx, "the flow can be related to a different service", log.Fields{"flow_info": FlowInfo})
+	return errors.New("invalid flow-info")
+}
+
+func checkVlanAndPbitEqualityForFlows(vlanVid uint32, Info FlowInfo, vlanPcp uint32) error {
+	if err := checkVlanEqualityForFlows(vlanVid, Info); err != nil {
+		return err
+	}
+
+	if Info.Flow.Action.Cmd.RemarkInnerPbits || Info.Flow.Action.Cmd.RemarkOuterPbits {
+		if vlanPcp == Info.Flow.Action.OPbits || vlanPcp == Info.Flow.Action.IPbits {
+			return nil
+		}
+	} else if vlanPcp == Info.Flow.Classifier.OPbits {
+		//no remark action but flow has pbits
+		return nil
+	} else if vlanPcp == 0xff || Info.Flow.Classifier.OPbits == 0xff {
+		// no pbit found
+		return nil
+	}
+	return errors.New("not found in terms of pbit equality")
+}
+
+func checkVlanEqualityForFlows(vlanVid uint32, Info FlowInfo) error {
+	if vlanVid == Info.Flow.Action.OVid || vlanVid == Info.Flow.Classifier.IVid {
+		return nil
+	}
+	return errors.New("not found in terms of vlan_id equality")
+}
+
+//AddGemToOnuGemInfo adds gemport to onugem info kvstore
+func (RsrcMgr *OpenOltResourceMgr) AddGemToOnuGemInfo(ctx context.Context, intfID uint32, onuID uint32, gemPort uint32) error {
+	var onuGemData []OnuGemInfo
+	var err error
+
+	if err = RsrcMgr.ResourceMgrs[intfID].GetOnuGemInfo(ctx, intfID, &onuGemData); err != nil {
+		logger.Errorf(ctx, "failed to get onuifo for intfid %d", intfID)
+		return err
+	}
+	if len(onuGemData) == 0 {
+		logger.Errorw(ctx, "failed to ger Onuid info ", log.Fields{"intfid": intfID, "onuid": onuID})
+		return err
+	}
+
+	for idx, onugem := range onuGemData {
+		if onugem.OnuID == onuID {
+			for _, gem := range onuGemData[idx].GemPorts {
+				if gem == gemPort {
+					logger.Debugw(ctx, "Gem already present in onugem info, skpping addition", log.Fields{"gem": gem})
+					return nil
+				}
+			}
+			logger.Debugw(ctx, "Added gem to onugem info", log.Fields{"gem": gemPort})
+			onuGemData[idx].GemPorts = append(onuGemData[idx].GemPorts, gemPort)
+			break
+		}
+	}
+	err = RsrcMgr.ResourceMgrs[intfID].AddOnuGemInfo(ctx, intfID, onuGemData)
+	if err != nil {
+		logger.Error(ctx, "Failed to add onugem to kv store")
+		return err
+	}
+	return err
+}
+
+//GetOnuGemInfo gets onu gem info from the kvstore per interface
+func (RsrcMgr *OpenOltResourceMgr) GetOnuGemInfo(ctx context.Context, IntfID uint32) ([]OnuGemInfo, error) {
+	var onuGemData []OnuGemInfo
+
+	if err := RsrcMgr.ResourceMgrs[IntfID].GetOnuGemInfo(ctx, IntfID, &onuGemData); err != nil {
+		logger.Errorf(ctx, "failed to get onuifo for intfid %d", IntfID)
+		return nil, err
+	}
+
+	return onuGemData, nil
+}
+
+// AddOnuGemInfo adds onu info on to the kvstore per interface
+func (RsrcMgr *OpenOltResourceMgr) AddOnuGemInfo(ctx context.Context, IntfID uint32, onuGem OnuGemInfo) error {
+	var onuGemData []OnuGemInfo
+	var err error
+
+	if err = RsrcMgr.ResourceMgrs[IntfID].GetOnuGemInfo(ctx, IntfID, &onuGemData); err != nil {
+		logger.Errorf(ctx, "failed to get onuifo for intfid %d", IntfID)
+		return olterrors.NewErrPersistence("get", "OnuGemInfo", IntfID,
+			log.Fields{"onuGem": onuGem, "intfID": IntfID}, err)
+	}
+	onuGemData = append(onuGemData, onuGem)
+	err = RsrcMgr.ResourceMgrs[IntfID].AddOnuGemInfo(ctx, IntfID, onuGemData)
+	if err != nil {
+		logger.Error(ctx, "Failed to add onugem to kv store")
+		return olterrors.NewErrPersistence("set", "OnuGemInfo", IntfID,
+			log.Fields{"onuGemData": onuGemData, "intfID": IntfID}, err)
+	}
+
+	logger.Debugw(ctx, "added onu to onugeminfo", log.Fields{"intf": IntfID, "onugem": onuGem})
+	return nil
+}
+
+// AddUniPortToOnuInfo adds uni port to the onuinfo kvstore. check if the uni is already present if not update the kv store.
+func (RsrcMgr *OpenOltResourceMgr) AddUniPortToOnuInfo(ctx context.Context, intfID uint32, onuID uint32, portNo uint32) {
+	var onuGemData []OnuGemInfo
+	var err error
+
+	if err = RsrcMgr.ResourceMgrs[intfID].GetOnuGemInfo(ctx, intfID, &onuGemData); err != nil {
+		logger.Errorf(ctx, "failed to get onuifo for intfid %d", intfID)
+		return
+	}
+	for idx, onu := range onuGemData {
+		if onu.OnuID == onuID {
+			for _, uni := range onu.UniPorts {
+				if uni == portNo {
+					logger.Debugw(ctx, "uni already present in onugem info", log.Fields{"uni": portNo})
+					return
+				}
+			}
+			onuGemData[idx].UniPorts = append(onuGemData[idx].UniPorts, portNo)
+			break
+		}
+	}
+	err = RsrcMgr.ResourceMgrs[intfID].AddOnuGemInfo(ctx, intfID, onuGemData)
+	if err != nil {
+		logger.Errorw(ctx, "Failed to add uin port in onugem to kv store", log.Fields{"uni": portNo})
+		return
+	}
+}
+
+//UpdateGemPortForPktIn updates gemport for pkt in path to kvstore, path being intfid, onuid, portno, vlan id, priority bit
+func (RsrcMgr *OpenOltResourceMgr) UpdateGemPortForPktIn(ctx context.Context, pktIn PacketInInfoKey, gemPort uint32) {
+
+	path := fmt.Sprintf(OnuPacketINPath, pktIn.IntfID, pktIn.OnuID, pktIn.LogicalPort, pktIn.VlanID, pktIn.Priority)
+	Value, err := json.Marshal(gemPort)
+	if err != nil {
+		logger.Error(ctx, "Failed to marshal data")
+		return
+	}
+	if err = RsrcMgr.KVStore.Put(ctx, path, Value); err != nil {
+		logger.Errorw(ctx, "Failed to put to kvstore", log.Fields{"path": path, "value": gemPort})
+		return
+	}
+	logger.Debugw(ctx, "added gem packet in successfully", log.Fields{"path": path, "gem": gemPort})
+}
+
+// GetGemPortFromOnuPktIn gets the gem port from onu pkt in path, path being intfid, onuid, portno, vlan id, priority bit
+func (RsrcMgr *OpenOltResourceMgr) GetGemPortFromOnuPktIn(ctx context.Context, packetInInfoKey PacketInInfoKey) (uint32, error) {
+
+	var Val []byte
+	var gemPort uint32
+
+	path := fmt.Sprintf(OnuPacketINPath, packetInInfoKey.IntfID, packetInInfoKey.OnuID, packetInInfoKey.LogicalPort,
+		packetInInfoKey.VlanID, packetInInfoKey.Priority)
+
+	value, err := RsrcMgr.KVStore.Get(ctx, path)
+	if err != nil {
+		logger.Errorw(ctx, "Failed to get from kv store", log.Fields{"path": path})
+		return uint32(0), err
+	} else if value == nil {
+		logger.Debugw(ctx, "No pkt in gem found", log.Fields{"path": path})
+		return uint32(0), nil
+	}
+
+	if Val, err = kvstore.ToByte(value.Value); err != nil {
+		logger.Error(ctx, "Failed to convert to byte array")
+		return uint32(0), err
+	}
+	if err = json.Unmarshal(Val, &gemPort); err != nil {
+		logger.Error(ctx, "Failed to unmarshall")
+		return uint32(0), err
+	}
+	logger.Debugw(ctx, "found packein gemport from path", log.Fields{"path": path, "gem": gemPort})
+
+	return gemPort, nil
+}
+
+//DelGemPortPktInOfAllServices deletes the gemports from  pkt in path for all services
+func (RsrcMgr *OpenOltResourceMgr) DelGemPortPktInOfAllServices(ctx context.Context, intfID uint32, onuID uint32, logicalPort uint32) error {
+
+	Path := fmt.Sprintf(OnuPacketINPathPrefix, intfID, onuID, logicalPort)
+	logger.Debugf(ctx, "getting flows from the path:%s", Path)
+	Value, err := RsrcMgr.KVStore.List(ctx, Path)
+	if err != nil {
+		logger.Errorf(ctx, "failed to get flows from kvstore for path %s", Path)
+		return errors.New("failed to get flows from kvstore for path " + Path)
+	}
+	logger.Debugf(ctx, "%d flows retrieved from the path:%s", len(Value), Path)
+
+	for key := range Value {
+		if err := RsrcMgr.KVStore.Delete(ctx, key); err != nil {
+			logger.Errorf(ctx, "Falied to remove resource %s", key)
+			return err
+		}
+	}
+	return nil
+}
+
+// DelOnuGemInfoForIntf deletes the onugem info from kvstore per interface
+func (RsrcMgr *OpenOltResourceMgr) DelOnuGemInfoForIntf(ctx context.Context, intfID uint32) error {
+	if err := RsrcMgr.ResourceMgrs[intfID].DelOnuGemInfoForIntf(ctx, intfID); err != nil {
+		logger.Errorw(ctx, "failed to delete onu gem info for", log.Fields{"intfid": intfID})
+		return err
+	}
+	return nil
+}
+
+//GetNNIFromKVStore gets NNi intfids from kvstore. path being per device
+func (RsrcMgr *OpenOltResourceMgr) GetNNIFromKVStore(ctx context.Context) ([]uint32, error) {
+
+	var nni []uint32
+	var Val []byte
+
+	path := NnniIntfID
+	value, err := RsrcMgr.KVStore.Get(ctx, path)
+	if err != nil {
+		logger.Error(ctx, "failed to get data from kv store")
+		return nil, err
+	}
+	if value != nil {
+		if Val, err = kvstore.ToByte(value.Value); err != nil {
+			logger.Error(ctx, "Failed to convert to byte array")
+			return nil, err
+		}
+		if err = json.Unmarshal(Val, &nni); err != nil {
+			logger.Error(ctx, "Failed to unmarshall")
+			return nil, err
+		}
+	}
+	return nni, err
+}
+
+// AddNNIToKVStore adds Nni interfaces to kvstore, path being per device.
+func (RsrcMgr *OpenOltResourceMgr) AddNNIToKVStore(ctx context.Context, nniIntf uint32) error {
+	var Value []byte
+
+	nni, err := RsrcMgr.GetNNIFromKVStore(ctx)
+	if err != nil {
+		logger.Error(ctx, "failed to fetch nni interfaces from kv store")
+		return err
+	}
+
+	path := NnniIntfID
+	nni = append(nni, nniIntf)
+	Value, err = json.Marshal(nni)
+	if err != nil {
+		logger.Error(ctx, "Failed to marshal data")
+	}
+	if err = RsrcMgr.KVStore.Put(ctx, path, Value); err != nil {
+		logger.Errorw(ctx, "Failed to put to kvstore", log.Fields{"path": path, "value": Value})
+		return err
+	}
+	logger.Debugw(ctx, "added nni to kv successfully", log.Fields{"path": path, "nni": nniIntf})
+	return nil
+}
+
+// DelNNiFromKVStore deletes nni interface list from kv store.
+func (RsrcMgr *OpenOltResourceMgr) DelNNiFromKVStore(ctx context.Context) error {
+
+	path := NnniIntfID
+
+	if err := RsrcMgr.KVStore.Delete(ctx, path); err != nil {
+		logger.Errorw(ctx, "Failed to delete nni interfaces from kv store", log.Fields{"path": path})
+		return err
+	}
+	return nil
+}
+
+//UpdateFlowIDsForGem updates flow id per gemport
+func (RsrcMgr *OpenOltResourceMgr) UpdateFlowIDsForGem(ctx context.Context, intf uint32, gem uint32, flowIDs []uint32) error {
+	var val []byte
+	path := fmt.Sprintf(FlowIDsForGem, intf)
+
+	flowsForGem, err := RsrcMgr.GetFlowIDsGemMapForInterface(ctx, intf)
+	if err != nil {
+		logger.Error(ctx, "Failed to ger flowids for interface", log.Fields{"error": err, "intf": intf})
+		return err
+	}
+	if flowsForGem == nil {
+		flowsForGem = make(map[uint32][]uint32)
+	}
+	flowsForGem[gem] = flowIDs
+	val, err = json.Marshal(flowsForGem)
+	if err != nil {
+		logger.Error(ctx, "Failed to marshal data", log.Fields{"error": err})
+		return err
+	}
+
+	RsrcMgr.flowIDToGemInfoLock.Lock()
+	defer RsrcMgr.flowIDToGemInfoLock.Unlock()
+	if err = RsrcMgr.KVStore.Put(ctx, path, val); err != nil {
+		logger.Errorw(ctx, "Failed to put to kvstore", log.Fields{"error": err, "path": path, "value": val})
+		return err
+	}
+	logger.Debugw(ctx, "added flowid list for gem to kv successfully", log.Fields{"path": path, "flowidlist": flowsForGem[gem]})
+	return nil
+}
+
+//DeleteFlowIDsForGem deletes the flowID list entry per gem from kvstore.
+func (RsrcMgr *OpenOltResourceMgr) DeleteFlowIDsForGem(ctx context.Context, intf uint32, gem uint32) {
+	path := fmt.Sprintf(FlowIDsForGem, intf)
+	var val []byte
+
+	flowsForGem, err := RsrcMgr.GetFlowIDsGemMapForInterface(ctx, intf)
+	if err != nil {
+		logger.Error(ctx, "Failed to ger flowids for interface", log.Fields{"error": err, "intf": intf})
+		return
+	}
+	if flowsForGem == nil {
+		logger.Error(ctx, "No flowids found ", log.Fields{"intf": intf, "gemport": gem})
+		return
+	}
+	delete(flowsForGem, gem)
+	val, err = json.Marshal(flowsForGem)
+	if err != nil {
+		logger.Error(ctx, "Failed to marshal data", log.Fields{"error": err})
+		return
+	}
+
+	RsrcMgr.flowIDToGemInfoLock.Lock()
+	defer RsrcMgr.flowIDToGemInfoLock.Unlock()
+	if err = RsrcMgr.KVStore.Put(ctx, path, val); err != nil {
+		logger.Errorw(ctx, "Failed to put to kvstore", log.Fields{"error": err, "path": path, "value": val})
+	}
+}
+
+//GetFlowIDsGemMapForInterface gets flowids per gemport and interface
+func (RsrcMgr *OpenOltResourceMgr) GetFlowIDsGemMapForInterface(ctx context.Context, intf uint32) (map[uint32][]uint32, error) {
+	path := fmt.Sprintf(FlowIDsForGem, intf)
+	var flowsForGem map[uint32][]uint32
+	var val []byte
+	RsrcMgr.flowIDToGemInfoLock.RLock()
+	value, err := RsrcMgr.KVStore.Get(ctx, path)
+	RsrcMgr.flowIDToGemInfoLock.RUnlock()
+	if err != nil {
+		logger.Error(ctx, "failed to get data from kv store")
+		return nil, err
+	}
+	if value != nil && value.Value != nil {
+		if val, err = kvstore.ToByte(value.Value); err != nil {
+			logger.Error(ctx, "Failed to convert to byte array ", log.Fields{"error": err})
+			return nil, err
+		}
+		if err = json.Unmarshal(val, &flowsForGem); err != nil {
+			logger.Error(ctx, "Failed to unmarshall", log.Fields{"error": err})
+			return nil, err
+		}
+	}
+	return flowsForGem, nil
+}
+
+//DeleteIntfIDGempMapPath deletes the intf id path used to store flow ids per gem to kvstore.
+func (RsrcMgr *OpenOltResourceMgr) DeleteIntfIDGempMapPath(ctx context.Context, intf uint32) {
+	path := fmt.Sprintf(FlowIDsForGem, intf)
+	RsrcMgr.flowIDToGemInfoLock.Lock()
+	defer RsrcMgr.flowIDToGemInfoLock.Unlock()
+	if err := RsrcMgr.KVStore.Delete(ctx, path); err != nil {
+		logger.Errorw(ctx, "Failed to delete nni interfaces from kv store", log.Fields{"path": path})
+	}
+}
+
+// RemoveResourceMap Clear resource map associated with (intfid, onuid, uniid) tuple.
+func (RsrcMgr *OpenOltResourceMgr) RemoveResourceMap(ctx context.Context, intfID uint32, onuID int32, uniID int32) {
+	IntfOnuIDUniID := fmt.Sprintf("%d,%d,%d", intfID, onuID, uniID)
+	RsrcMgr.ResourceMgrs[intfID].RemoveResourceMap(ctx, IntfOnuIDUniID)
+}
+
+//GetMcastQueuePerInterfaceMap gets multicast queue info per pon interface
+func (RsrcMgr *OpenOltResourceMgr) GetMcastQueuePerInterfaceMap(ctx context.Context) (map[uint32][]uint32, error) {
+	path := McastQueuesForIntf
+	var mcastQueueToIntfMap map[uint32][]uint32
+	var val []byte
+
+	kvPair, err := RsrcMgr.KVStore.Get(ctx, path)
+	if err != nil {
+		logger.Error(ctx, "failed to get data from kv store")
+		return nil, err
+	}
+	if kvPair != nil && kvPair.Value != nil {
+		if val, err = kvstore.ToByte(kvPair.Value); err != nil {
+			logger.Error(ctx, "Failed to convert to byte array ", log.Fields{"error": err})
+			return nil, err
+		}
+		if err = json.Unmarshal(val, &mcastQueueToIntfMap); err != nil {
+			logger.Error(ctx, "Failed to unmarshall ", log.Fields{"error": err})
+			return nil, err
+		}
+	}
+	return mcastQueueToIntfMap, nil
+}
+
+//AddMcastQueueForIntf adds multicast queue for pon interface
+func (RsrcMgr *OpenOltResourceMgr) AddMcastQueueForIntf(ctx context.Context, intf uint32, gem uint32, servicePriority uint32) error {
+	var val []byte
+	path := McastQueuesForIntf
+
+	mcastQueues, err := RsrcMgr.GetMcastQueuePerInterfaceMap(ctx)
+	if err != nil {
+		logger.Errorw(ctx, "Failed to get multicast queue info for interface", log.Fields{"error": err, "intf": intf})
+		return err
+	}
+	if mcastQueues == nil {
+		mcastQueues = make(map[uint32][]uint32)
+	}
+	mcastQueues[intf] = []uint32{gem, servicePriority}
+	if val, err = json.Marshal(mcastQueues); err != nil {
+		logger.Errorw(ctx, "Failed to marshal data", log.Fields{"error": err})
+		return err
+	}
+	if err = RsrcMgr.KVStore.Put(ctx, path, val); err != nil {
+		logger.Errorw(ctx, "Failed to put to kvstore", log.Fields{"error": err, "path": path, "value": val})
+		return err
+	}
+	logger.Debugw(ctx, "added multicast queue info to KV store successfully", log.Fields{"path": path, "mcastQueueInfo": mcastQueues[intf], "interfaceId": intf})
+	return nil
+}
+
+//AddFlowGroupToKVStore adds flow group into KV store
+func (RsrcMgr *OpenOltResourceMgr) AddFlowGroupToKVStore(ctx context.Context, groupEntry *ofp.OfpGroupEntry, cached bool) error {
+	var Value []byte
+	var err error
+	var path string
+	if cached {
+		path = fmt.Sprintf(FlowGroupCached, groupEntry.Desc.GroupId)
+	} else {
+		path = fmt.Sprintf(FlowGroup, groupEntry.Desc.GroupId)
+	}
+	var outPorts []uint32
+	for _, ofBucket := range groupEntry.Desc.Buckets {
+		for _, ofAction := range ofBucket.Actions {
+			if ofAction.Type == ofp.OfpActionType_OFPAT_OUTPUT {
+				outPorts = append(outPorts, ofAction.GetOutput().Port)
+			}
+		}
+	}
+	groupInfo := GroupInfo{
+		GroupID:  groupEntry.Desc.GroupId,
+		OutPorts: outPorts,
+	}
+
+	Value, err = json.Marshal(groupInfo)
+
+	if err != nil {
+		logger.Error(ctx, "failed to Marshal flow group object")
+		return err
+	}
+
+	if err = RsrcMgr.KVStore.Put(ctx, path, Value); err != nil {
+		logger.Errorf(ctx, "Failed to update resource %s", path)
+		return err
+	}
+	return nil
+}
+
+//RemoveFlowGroupFromKVStore removes flow group from KV store
+func (RsrcMgr *OpenOltResourceMgr) RemoveFlowGroupFromKVStore(ctx context.Context, groupID uint32, cached bool) error {
+	var path string
+	if cached {
+		path = fmt.Sprintf(FlowGroupCached, groupID)
+	} else {
+		path = fmt.Sprintf(FlowGroup, groupID)
+	}
+	if err := RsrcMgr.KVStore.Delete(ctx, path); err != nil {
+		logger.Errorf(ctx, "Failed to remove resource %s due to %s", path, err)
+		return err
+	}
+	return nil
+}
+
+//GetFlowGroupFromKVStore fetches flow group from the KV store. Returns (false, {} error) if any problem occurs during
+//fetching the data. Returns (true, groupInfo, nil) if the group is fetched successfully.
+// Returns (false, {}, nil) if the group does not exists in the KV store.
+func (RsrcMgr *OpenOltResourceMgr) GetFlowGroupFromKVStore(ctx context.Context, groupID uint32, cached bool) (bool, GroupInfo, error) {
+	var groupInfo GroupInfo
+	var path string
+	if cached {
+		path = fmt.Sprintf(FlowGroupCached, groupID)
+	} else {
+		path = fmt.Sprintf(FlowGroup, groupID)
+	}
+	kvPair, err := RsrcMgr.KVStore.Get(ctx, path)
+	if err != nil {
+		return false, groupInfo, err
+	}
+	if kvPair != nil && kvPair.Value != nil {
+		Val, err := kvstore.ToByte(kvPair.Value)
+		if err != nil {
+			logger.Errorw(ctx, "Failed to convert flow group into byte array", log.Fields{"error": err})
+			return false, groupInfo, err
+		}
+		if err = json.Unmarshal(Val, &groupInfo); err != nil {
+			logger.Errorw(ctx, "Failed to unmarshal", log.Fields{"error": err})
+			return false, groupInfo, err
+		}
+		return true, groupInfo, nil
+	}
+	return false, groupInfo, nil
+}