diff --git a/pkg/models/hwcomponents/db.go b/pkg/models/hwcomponents/db.go
new file mode 100644
index 0000000..7d59d3f
--- /dev/null
+++ b/pkg/models/hwcomponents/db.go
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2020-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 hwcomponents stores methods and functions related to hardware
+package hwcomponents
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	copy "github.com/jinzhu/copier"
+	dmi "github.com/opencord/device-management-interface/go/dmi"
+
+	"github.com/opencord/opendevice-manager/pkg/db"
+	log "github.com/opencord/voltha-lib-go/v4/pkg/log"
+)
+
+// DBAddByName inserts Device Info record to DB with Name as Key
+func (rec *HwCompRecord) DBAddByUuid(ctx context.Context, deviceUuid string) error {
+	if rec.Uuid == "" || deviceUuid == "" {
+		logger.Errorw(ctx, "DBAddByUuid-failed-missing-uuid", log.Fields{"rec": rec, "dev-uuid": deviceUuid})
+		return errors.New("missing uuid")
+	}
+	key := fmt.Sprintf(DbPathUuidToRecord, deviceUuid, rec.Uuid)
+	b, _ := json.Marshal(rec)
+	entry := string(b)
+	err := db.Put(ctx, key, entry)
+	cache.store(deviceUuid, rec)
+	logger.Infow(ctx, "Inserting-hw-comp-info-to-Db-in-DBAddByUuid-method", log.Fields{"rec": rec, "error": err})
+	return err
+}
+
+// DBAddByName inserts Device Info record to DB with Name as Key
+func DBAddNameToUuidlookup(ctx context.Context, deviceUuid string, nameToUuidMap map[string]string) error {
+	if deviceUuid == "" || len(nameToUuidMap) == 0 {
+		logger.Errorw(ctx, "DBAddNameToUuidlookup-failed-missing-uuid-or-map", log.Fields{"map": nameToUuidMap, "dev-uuid": deviceUuid})
+		return errors.New("missing info")
+	}
+	key := fmt.Sprintf(DbPathNameToUuid, deviceUuid)
+	b, _ := json.Marshal(nameToUuidMap)
+	entry := string(b)
+	err := db.Put(ctx, key, entry)
+	logger.Infow(ctx, "DBAddNameToUuidlookup-method-complete", log.Fields{"map": nameToUuidMap, "error": err})
+	return err
+}
+
+// DBSaveHwCompsFromPhysicalInventory iterates through each children and store hwcomponents in db
+func DBSaveHwCompsFromPhysicalInventory(ctx context.Context, deviceUuid string, nameToUuidMap map[string]string, children []*dmi.Component) {
+	if len(children) == 0 {
+		return
+	}
+	for _, child := range children {
+		hwRec := new(HwCompRecord)
+		if err := copy.Copy(&hwRec, &child); hwRec.Name == "" {
+			logger.Errorw(ctx, "Failed-at-copying-hw-comp-from-inventory-list", log.Fields{"error": err, "child": child, "hw-comp": hwRec})
+			continue
+		}
+		if child.Uri != nil {
+			hwRec.Uri = child.Uri.Uri
+		}
+		if child.Uuid != nil {
+			hwRec.Uuid = child.Uuid.Uuid
+		}
+		for _, grandChild := range child.Children {
+			hwRec.Children = append(hwRec.Children, grandChild.Uuid.Uuid)
+		}
+		hwRec.DBAddByUuid(ctx, deviceUuid)
+		nameToUuidMap[hwRec.Name] = hwRec.Uuid
+		DBSaveHwCompsFromPhysicalInventory(ctx, deviceUuid, nameToUuidMap, child.Children)
+		logger.Infow(ctx, "Successful-at-creating-object-for-new-hw-info", log.Fields{"new-object": child})
+	}
+}
+
+// DBDelRecord deletes all entries for Device Info
+func DBDelAllHwComponents(ctx context.Context, deviceUuid string) error {
+
+	var err error
+
+	if deviceUuid == "" {
+		logger.Errorw(ctx, "deleting-all-hw-components-failed", log.Fields{"reason": "missing-device-uuid"})
+		return errors.New("missing device uuid")
+	}
+
+	key := fmt.Sprintf(DbPrefix, deviceUuid)
+	err = db.DelAll(ctx, key)
+	cache.delDevice(deviceUuid)
+	logger.Infow(ctx, "deleting-all-hw-components-completed", log.Fields{"key": key})
+
+	return err
+}
+
+// DBGetRecByUuid func reads hw comp record by uuid
+func DBGetRecByUuid(ctx context.Context, deviceUuid, hwCompUuid string) (*HwCompRecord, error) {
+	if deviceUuid == "" || hwCompUuid == "" {
+		logger.Errorw(ctx, "DBGetHwCompRec-failed-missing-uuid", log.Fields{"device-uuid": deviceUuid, "hw-comp-uuid": hwCompUuid})
+		return nil, errors.New("uuid field is empty")
+	}
+
+	if rec := cache.get(deviceUuid, hwCompUuid); rec != nil {
+		return rec, nil
+	}
+
+	key := fmt.Sprintf(DbPathUuidToRecord, deviceUuid, hwCompUuid)
+	entry, err := db.Read(ctx, key)
+	if err != nil {
+		logger.Errorw(ctx, "DBGetRecByUuid-failed-read-db", log.Fields{"error": err, "key": key})
+		return nil, err
+	}
+
+	rec := new(HwCompRecord)
+	if err = json.Unmarshal([]byte(entry), rec); err != nil {
+		logger.Errorw(ctx, "Failed-to-unmarshal-at-DBGetRecByUuid", log.Fields{"reason": err, "entry": entry})
+		return nil, err
+	}
+
+	cache.store(deviceUuid, rec)
+
+	logger.Debugw(ctx, "DBGetHwCompRec-completed", log.Fields{"device-uuid": deviceUuid, "hw-comp-uuid": hwCompUuid, "rec": rec})
+	return rec, nil
+}
+
+// DBGetRecByName func reads hw comp record by name
+func DBGetRecByName(ctx context.Context, deviceUuid, hwName string) (*HwCompRecord, error) {
+	if deviceUuid == "" || hwName == "" {
+		logger.Errorw(ctx, "DBGetRecByName-failed-missing-uuid", log.Fields{"device-uuid": deviceUuid, "hw-comp-name": hwName})
+		return nil, errors.New("name field is empty")
+	}
+	key := fmt.Sprintf(DbPathNameToUuid, deviceUuid)
+	entry, err := db.Read(ctx, key)
+	if err != nil {
+		logger.Errorw(ctx, "DBGetRecByName-failed-read-db", log.Fields{"error": err, "key": key})
+		return nil, err
+	}
+
+	nameToUuidMap := make(map[string]string)
+	if err = json.Unmarshal([]byte(entry), &nameToUuidMap); nameToUuidMap == nil || err != nil {
+		logger.Errorw(ctx, "Failed-to-unmarshal-at-DBGetRecByName", log.Fields{"reason": err, "entry": entry})
+		return nil, err
+	}
+
+	if hwUuid, ok := nameToUuidMap[hwName]; ok {
+		rec, err2 := DBGetRecByUuid(ctx, deviceUuid, hwUuid)
+		logger.Debugw(ctx, "DBGetRecByName-completed", log.Fields{"device-uuid": deviceUuid, "hw-comp-name": hwName, "rec": rec, "error": err2})
+	}
+
+	return nil, errors.New("name not found")
+}
diff --git a/pkg/models/hwcomponents/models.go b/pkg/models/hwcomponents/models.go
new file mode 100644
index 0000000..9906b53
--- /dev/null
+++ b/pkg/models/hwcomponents/models.go
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2020-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 hwcomponents stores methods and functions related to hardware
+package hwcomponents
+
+import (
+	"sync"
+
+	config "github.com/opencord/opendevice-manager/pkg/config"
+	v1 "github.com/opencord/opendevice-manager/pkg/models/hwcomponents/v1"
+	log "github.com/opencord/voltha-lib-go/v4/pkg/log"
+)
+
+// Constants defined are the DB Path meant for storing hw component info records
+const (
+	DbPrefix = config.DBPrefix + config.CurDBVer + "/HwCompRec/%s"
+	// Key : /OpenDevMgr/v1/HwCompRec/{Device-Uuid}/Components
+	// Val : Map => {"hw-comp-name-1":"hw-comp-uuid-1", "hw-comp-name-2":"hw-comp-uuid-2"}
+	DbPathNameToUuid = DbPrefix + "/Components"
+	// Key : /OpenDevMgr/v1/HwCompRec/{Device-Uuid}/Uuid/{Hw-Comp-Uuid}
+	// Val : HwCompRecord{}
+	DbPathUuidToRecord = DbPrefix + "/Uuid/%s"
+)
+
+// compCache stores component information in buffer
+type compCache struct {
+	uuidToRec map[string]map[string]*HwCompRecord // nameToRecord maintains cache for mapping from name to main record
+	mutex     sync.Mutex
+}
+
+var cache *compCache
+
+// logger represents the log object
+var logger log.CLogger
+
+// initCache initialises device cache
+func initCache() {
+	cache = new(compCache)
+	cache.uuidToRec = make(map[string]map[string]*HwCompRecord)
+	cache.mutex = sync.Mutex{}
+}
+
+// init function for the package
+func init() {
+	logger = config.Initlog()
+	initCache()
+}
+
+type HwCompRecord v1.HwCompRecordV1_0
+
+func (*compCache) store(devUuid string, rec *HwCompRecord) {
+	cache.mutex.Lock()
+	defer cache.mutex.Unlock()
+
+	var uuidToRecMap map[string]*HwCompRecord
+
+	if val, ok := cache.uuidToRec[devUuid]; !ok {
+		uuidToRecMap = make(map[string]*HwCompRecord)
+	} else {
+		uuidToRecMap = val
+	}
+
+	uuidToRecMap[rec.Uuid] = rec
+	cache.uuidToRec[devUuid] = uuidToRecMap
+}
+
+func (*compCache) get(devUuid, compUuid string) *HwCompRecord {
+	cache.mutex.Lock()
+	defer cache.mutex.Unlock()
+
+	var uuidToRecMap map[string]*HwCompRecord
+
+	if val, ok := cache.uuidToRec[devUuid]; !ok {
+		return nil
+	} else {
+		uuidToRecMap = val
+	}
+
+	if rec, ok := uuidToRecMap[compUuid]; ok {
+		return rec
+	}
+
+	return nil
+}
+
+func (*compCache) delDevice(devUuid string) *HwCompRecord {
+	cache.mutex.Lock()
+	defer cache.mutex.Unlock()
+	delete(cache.uuidToRec, devUuid)
+	return nil
+}
diff --git a/pkg/models/hwcomponents/v1/models.go b/pkg/models/hwcomponents/v1/models.go
new file mode 100644
index 0000000..b7734a8
--- /dev/null
+++ b/pkg/models/hwcomponents/v1/models.go
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2020-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 v1 stores models for hw components
+package v1
+
+import (
+	dmi "github.com/opencord/device-management-interface/go/dmi"
+
+	timestamp "github.com/golang/protobuf/ptypes/timestamp"
+)
+
+type HwCompRecordV1_0 struct {
+	Name         string                     `json:"name,omitempty"`
+	Class        dmi.ComponentType          `json:"class,omitempty"`
+	Description  string                     `json:"description,omitempty"`
+	Parent       string                     `json:"parent,omitempty"`
+	ParentRelPos int32                      `json:"parent_rel_pos,omitempty"`
+	Children     []string                   `json:"children,omitempty"` // Children stores uuid of all direct child
+	SerialNum    string                     `json:"serial_num,omitempty"`
+	MfgName      string                     `json:"mfg_name,omitempty"`
+	ModelName    string                     `json:"model_name,omitempty"`
+	Alias        string                     `json:"alias,omitempty"`
+	AssetId      string                     `json:"asset_id,omitempty"`
+	IsFru        bool                       `json:"is_fru,omitempty"`
+	MfgDate      *timestamp.Timestamp       `json:"mfg_date,omitempty"`
+	Uri          string                     `json:"uri,omitempty"`
+	Uuid         string                     `json:"uuid,omitempty"`
+	State        *dmi.ComponentState        `json:"state,omitempty"`
+	SensorData   []*dmi.ComponentSensorData `json:"sensor_data,omitempty"`
+	Specific     string                     `json:"specific,omitempty"`
+}