diff --git a/src/test/cord-api/Framework/restApi.py b/src/test/cord-api/Framework/restApi.py
index c93f121..7eac08c 100644
--- a/src/test/cord-api/Framework/restApi.py
+++ b/src/test/cord-api/Framework/restApi.py
@@ -178,7 +178,7 @@
     time.sleep(5)
     result = test.ApiDelete(key, urlSuffix)
 '''
-#'''
+'''
 test = restApi()
 #key = "UTILS_SYNCHRONIZER"
 #key = "CORE_USERS"
@@ -188,22 +188,23 @@
 #jsonResponse = test.ApiPost(key,{"identity":{"name":"My House 22"}})
 #jsonResponse = test.ApiPost(key,{"firstname":"Test002","lastname":"User002","email":"test002@onlab.us","password":"TestUser002","site": "http://localhost:8000/api/core/sites/1/"})
 key = "VOLT_TENANT"
-#key = "VOLT_SUBSCRIBER"
+key2 = "VOLT_SUBSCRIBER"
 #jsonResponse = test.ApiDelete(key,204)
 #jsonResponse = test.ApiPut(key,{"firstname":"Test002","lastname":"User002","email":"test002update@onlab.us","password":"TestUser002","site": "http://localhost:8000/api/core/sites/1/"},14)
 #jsonResponse = test.ApiPost(key2,{"username":"test002update@onlab.us","password":"TestUser002"})
 #jsonResponse = test.ApiPost(key2,{"username":"padmin@vicci.org","password":"letmein"})
 #jsonResponse = test.ApiPut(key,{"username":"testuser","password":"TestUser001"},"9")
 #key = "CORE_INSTANCES"
-#key1 = "CORE_SANITY_SLICES"
+key1 = "CH_CORE_SERVICELINK"
 #key2 = "CORE_SLICES"
 #input_dict = { "s_tag" : "111", "c_tag" : "222", "subscriber" : 23}
 input_dict = {
          "s_tag" : 117,
          "c_tag" : 227,
-         "subscriber_root_id" : "16"
         }
-
+input_dict3 = {
+         "subscriber_service_instance_id" : 5
+         }
 #input_dict1 = { "name" : "mysite_Test1", "site" : 1 , "creator" : 1}
 input_dict2 = {
  
@@ -217,13 +218,16 @@
     }
 #jsonResponse = test.ApiPost(key,input_dict)
 #jsonResponse = test.ApiChameleonPut(key,input_dict,12)
-jsonGetData = test.ApiGet(key)
+#jsonGetData = test.ApiGet(key1)
+#jsonResponse = test.ApiChameleonPut(key1,input_dict3,6)
+#jsonGetData = test.ApiGet(key1)
 #print "========="
 #print jsonGetData
 #jsonEdit = test.ApiPut(key,{"c_tag" : "666","s_tag" : "123"},"30")
-#jsonO = test.ApiChameleonDelete(key,"56")
+jsonO = test.ApiChameleonDelete(key2,"50")
+jsonO = test.ApiChameleonDelete(key,"51")
 #jsonResponse = test.ApiPut(key,{"identity":{"name":"My House 22"}},"71")
 #jsonResponse = test.ApiPost(key,input_dict)
 #jsonResponse = test.ApiPut(key,{"name":"test1-changed"},"9")
 print "========="
-#'''
+'''
diff --git a/src/test/cord-api/Properties/RestApiProperties.py b/src/test/cord-api/Properties/RestApiProperties.py
index 2d44159..d252ea2 100644
--- a/src/test/cord-api/Properties/RestApiProperties.py
+++ b/src/test/cord-api/Properties/RestApiProperties.py
@@ -16,12 +16,15 @@
 
 #!/usr/bin/env python
 
-SERVER_IP = 'localhost'
+SERVER_IP = 'ms0925.utah.cloudlab.us'
+#SERVER_IP = '10.201.101.11'
+#SERVER_PORT = '9101'
 SERVER_PORT = '8080'
 USER = 'xosadmin@opencord.org'
-PASSWD = 'GKHDWlgEgHB780HSbUSc'
+PASSWD = 'wfjaPUOSD0nZiWe3LN8M'
 VOLT_SUBSCRIBER = '/xosapi/v1/rcord/cordsubscriberroots'
 VOLT_TENANT = '/xosapi/v1/volt/volttenants'
+CH_CORE_SERVICELINK = '/xosapi/v1/core/serviceinstancelinks'
 TENANT_SUBSCRIBER = '/api/tenant/cord/subscriber/'
 TENANT_VOLT = '/api/tenant/cord/volt/'
 UTILS_SYNCHRONIZER = '/api/utility/synchronizer/'
diff --git a/src/test/cord-api/Tests/Ch_MultiInstanceTest.txt b/src/test/cord-api/Tests/Ch_MultiInstanceTest.txt
index 29bf1d4..29be1cc 100644
--- a/src/test/cord-api/Tests/Ch_MultiInstanceTest.txt
+++ b/src/test/cord-api/Tests/Ch_MultiInstanceTest.txt
@@ -45,7 +45,9 @@
     ${voltList}=    utils.jsonToList    ${PATHFILE2}    voltSubscriberInfo
     Set Suite Variable    ${vlist}    ${voltList}
     @{instanceList}=    Create List
+    ${Subscriber_Id}=    Set Variable
     Set Suite Variable    @{instanceList}
+    Set Suite Variable    ${Subscriber_Id}
 
 Verify Single Instance functionality
     [Arguments]    ${type}    ${listIndex}
@@ -58,38 +60,61 @@
     ${subscriberList} =    Get Variable Value    ${slist}
     ${subscriberDict}=    utils.listToDict    ${subscriberList}    ${listIndex}
     ${api_result}=    restApi.ApiPost    VOLT_SUBSCRIBER    ${subscriberDict}
+    ${service_specific_id}=    utils.getFieldValueFromDict    ${subscriberDict}    service_specific_id
+    ${json_result}=    restApi.ApiGet    VOLT_SUBSCRIBER
+    Log    ${json_result}
+    ${json_result_list}=    Get From Dictionary    ${json_result}    items
+    ${getJsonDict}=    utils.getDictFromListOfDict    ${json_result_list}    service_specific_id    ${service_specific_id}
+    ${result}=    utils.compare_dict    ${subscriberDict}    ${getJsonDict}
+    Should Be True    ${result}
+    #${Subscriber_Id}=    utils.getFieldValueFromDict    ${getJsonDict}    id
+    #Log    ${Subscriber_Id}
     ${instanceList}    Create List
 
 Test Post volt Tenant Create
     [Arguments]    ${listIndex}
+    ${subscriberList} =    Get Variable Value    ${slist}
+    ${subscriberDict}=    utils.listToDict    ${subscriberList}    ${listIndex}
+    ${service_specific_id}=    utils.getFieldValueFromDict    ${subscriberDict}    service_specific_id
+    ${json_result}=    restApi.ApiGet    VOLT_SUBSCRIBER
+    Log    ${json_result}
+    ${json_result_list}=    Get From Dictionary    ${json_result}    items
+    ${getJsonDict}=    utils.getDictFromListOfDict    ${json_result_list}    service_specific_id    ${service_specific_id}
+    ${Subscriber_Id}=    utils.getFieldValueFromDict    ${getJsonDict}    id
+    Log    ${Subscriber_Id}
     ${voltTenantList} =    Get Variable Value    ${vlist}
     ${voltTenantDict}=    utils.listToDict    ${voltTenantList}    ${listIndex}
     ${voltDict}=    Get From Dictionary    ${voltTenantDict}    voltTenant
-    ${service_specific_id}=    Get From Dictionary    ${voltTenantDict}    service_specific_id
-    ${get_result}=    restApi.ApiGet    VOLT_SUBSCRIBER
+    ${c_tag}=    Get From Dictionary    ${voltDict}    c_tag
+    ${postResult}=    restApi.ApiPost    VOLT_TENANT    ${voltDict}
+    Sleep    10
+    # Verifying GET operation after POST
+    ${get_result}=    restApi.ApiGet    VOLT_TENANT
     ${get_result_list}=    Get From Dictionary    ${get_result}    items
-    ${subscriberDict}=    utils.getDictFromListofDict    ${get_result_list}    service_specific_id    ${service_specific_id}
-    ${subscriberID}=    utils.getFieldValueFromDict    ${subscriberDict}    id
-    ${updatedVoltDict}=    utils.setFieldValueInDict    ${voltDict}    subscriber_root_id    ${subscriberID}
-    ${api_result}=    restApi.ApiPost    VOLT_TENANT    ${updatedVoltDict}
-    Should Be True    ${api_result}
-    # Verifying Get operation after POST
-    Sleep    20
-    ${getVolt_result}=    restApi.ApiGet    VOLT_TENANT
-    Log    ${getVolt_result}
-    ${getVolt_result_list}=    utils.getFieldValueFromDict    ${getVolt_result}    items
-    Log    ${getVolt_result_list}
-    ${getJsonDict}=    utils.getDictFromListOfDict    ${getVolt_result_list}    subscriber_root_id    ${subscriberID}
-    Log    ${getJsonDict}
+    ${getJsonDict}=    utils.getDictFromListofDict    ${get_result_list}    c_tag    ${c_tag}
     ${test_result}=    utils.compare_dict    ${voltDict}    ${getJsonDict}
     Should Be True    ${test_result}
+    ${Volt_Id}=    Get From Dictionary    ${getJsonDict}    id
+    ${subscribed_links_ids_list}=    utils.getFieldValueFromDict    ${getJsonDict}    subscribed_links_ids
+    Log    ${subscribed_links_ids_list}
+    ${subscribed_links_ids}=    Get From List    ${subscribed_links_ids_list}    0
+    Log    ${subscribed_links_ids}
+    # Retrieve service links using provide links ID
+    ${getServiceLink}=    restApi.ApiChameleonGet    CH_CORE_SERVICELINK    ${subscribed_links_ids}
+    ${provider_service_instance_id}=    Get From Dictionary    ${getServiceLink}    provider_service_instance_id
+    # Update the subscriber_service_instance_id to the required subscriber_id to establish desired link
+    ${serviceDict}=    Create Dictionary    subscriber_service_instance_id=${Subscriber_Id}
+    ${result}=    restApi.ApiChameleonPut    CH_CORE_SERVICELINK    ${serviceDict}    ${subscribed_links_ids}
+    Sleep    10
+    Should Be True    ${result}
     # Validation of Instances
     Log    ${instanceList}
-    Log    ${getJsonDict}
-    ${VSGTenantList}=    Get From Dictionary    ${getJsonDict}    subscribed_tenants_ids
-    Log    ${VSGTenantList}
-    ${VSGTenant}=    Get From List    ${VSGTenantList}    0
-    ${getVSG_result}=    restApi.ApiChameleonGet    VSG_TENANT    ${VSGTenant}
+    #Log    ${getJsonDict}
+    #${VSGTenantList}=    Get From Dictionary    ${getJsonDict}    subscribed_tenants_ids
+    #Log    ${VSGTenantList}
+    #${VSGTenant}=    Get From List    ${VSGTenantList}    0
+    #${getVSG_result}=    restApi.ApiChameleonGet    VSG_TENANT    ${VSGTenant}
+    ${getVSG_result}=    restApi.ApiChameleonGet    VSG_TENANT    ${provider_service_instance_id}
     ${instance_id}=    Get From Dictionary    ${getVSG_result}    instance_id
     Append To List    ${instanceList}    ${instance_id}
     Log    ${instanceList}
diff --git a/src/test/cord-api/Tests/Ch_VoltTenant.txt b/src/test/cord-api/Tests/Ch_VoltTenant.txt
index 2165cc6..bf19af8 100644
--- a/src/test/cord-api/Tests/Ch_VoltTenant.txt
+++ b/src/test/cord-api/Tests/Ch_VoltTenant.txt
@@ -39,31 +39,40 @@
     ${voltTenantList} =    Get Variable Value    ${vlist}
     ${voltTenantDict}=    utils.listToDict    ${voltTenantList}    ${listIndex}
     ${voltDict}=    Get From Dictionary    ${voltTenantDict}    voltTenant
-    ${service_specific_id}=    Get From Dictionary    ${voltTenantDict}    service_specific_id
-    ${get_result}=    restApi.ApiGet    VOLT_SUBSCRIBER
-    ${get_result_list}=    Get From Dictionary    ${get_result}    items
-    ${subscriberDict}=    utils.getDictFromListofDict    ${get_result_list}    service_specific_id    ${service_specific_id}
-    ${subscriberID}=    utils.getFieldValueFromDict    ${subscriberDict}    id
-    Log    ${subscriberID}
-#    ${updatedVoltDict}=    utils.setFieldValueInDict    ${voltDict}    subscriber_root_id    ${subscriberID}
-#    ${api_result}=    restApi.ApiPost    VOLT_TENANT    ${voltDict}
-#    Should Be True    ${api_result}
-#    # Verifying Get operation after POST
-#    ${getVolt_result}=    restApi.ApiGet    VOLT_TENANT
-#    ${getVolt_result_list}=    Get From Dictionary    ${getVolt_result}    items
-#    ${getJsonDict}=    utils.getDictFromListOfDict    ${getVolt_result_list}    subscriber_root_id    ${subscriberID}
-#    ${test_result}=    utils.compare_dict    ${voltDict}    ${getJsonDict}
-#    Should Be True    ${test_result}
-#    # Verifying PUT operation
-#    ${putvoltList}=    Get Variable Value    ${putList}
-#    ${putVoltDict}=    utils.listToDict    ${putvoltList}    ${listIndex}
-#    ${putvoltTenantDict}=    Get From Dictionary    ${putVoltDict}    voltTenant
-#    ${voltID}=    utils.getFieldValueFromDict    ${getJsonDict}    id
-#    ${put_result}=    restApi.ApiChameleonPut    VOLT_TENANT    ${putvoltTenantDict}    ${voltID}
-#    Should Be True    ${put_result}
-#    # Verifying Get after PUT operation
-#    #${getVolt_afterPut}=    restApi.ApiGet    VOLT_TENANT
-#    #${getVoltDict}=    utils.getDictFromListofDict    ${getVolt_afterPut}    id    ${voltID}
-#    ${getVoltDict}=    restApi.ApiChameleonGet    VOLT_TENANT    ${voltID}
-#    ${result_afterPut}=    utils.compare_dict    ${putvoltTenantDict}    ${getVoltDict}
-#    Should Be True    ${result_afterPut}
+    ${c_tag}=    Get From Dictionary    ${voltDict}    c_tag
+    ${postResult}=    restApi.ApiPost    VOLT_TENANT    ${voltDict}
+    # Verifying Get Operation after POST
+    ${getVolt_result}=    restApi.ApiGet    VOLT_TENANT
+    ${getVolt_result_list}=    Get From Dictionary    ${getVolt_result}    items
+    ${getJsonDict}=    utils.getDictFromListOfDict    ${getVolt_result_list}    c_tag    ${c_tag}
+    ${test_result}=    utils.compare_dict    ${voltDict}    ${getJsonDict}
+    Should Be True    ${test_result}
+    # Retrieve provided_link_ids from tenantobject and associate with serviceinstancelinks to the core
+    #${service_specific_id}=    Get From Dictionary    ${voltTenantDict}    service_specific_id
+    #${get_result}=    restApi.ApiGet    VOLT_SUBSCRIBER
+    #${get_result_list}=    Get From Dictionary    ${get_result}    items
+    #${subscriberDict}=    utils.getDictFromListofDict    ${get_result_list}    service_specific_id    ${service_specific_id}
+    #${subscriberID}=    utils.getFieldValueFromDict    ${subscriberDict}    id
+    #Log    ${subscriberID}
+    #${updatedVoltDict}=    utils.setFieldValueInDict    ${voltDict}    subscriber_root_id    ${subscriberID}
+    #${api_result}=    restApi.ApiPost    VOLT_TENANT    ${voltDict}
+    #Should Be True    ${api_result}
+    # Verifying Get operation after POST
+    #${getVolt_result}=    restApi.ApiGet    VOLT_TENANT
+    #${getVolt_result_list}=    Get From Dictionary    ${getVolt_result}    items
+    #${getJsonDict}=    utils.getDictFromListOfDict    ${getVolt_result_list}    subscriber_root_id    ${subscriberID}
+    #${test_result}=    utils.compare_dict    ${voltDict}    ${getJsonDict}
+    #Should Be True    ${test_result}
+    #    # Verifying PUT operation
+    #    ${putvoltList}=    Get Variable Value    ${putList}
+    #    ${putVoltDict}=    utils.listToDict    ${putvoltList}    ${listIndex}
+    #    ${putvoltTenantDict}=    Get From Dictionary    ${putVoltDict}    voltTenant
+    #    ${voltID}=    utils.getFieldValueFromDict    ${getJsonDict}    id
+    #    ${put_result}=    restApi.ApiChameleonPut    VOLT_TENANT    ${putvoltTenantDict}    ${voltID}
+    #    Should Be True    ${put_result}
+    #    # Verifying Get after PUT operation
+    #    #${getVolt_afterPut}=    restApi.ApiGet    VOLT_TENANT
+    #    #${getVoltDict}=    utils.getDictFromListofDict    ${getVolt_afterPut}    id    ${voltID}
+    #    ${getVoltDict}=    restApi.ApiChameleonGet    VOLT_TENANT    ${voltID}
+    #    ${result_afterPut}=    utils.compare_dict    ${putvoltTenantDict}    ${getVoltDict}
+    #    Should Be True    ${result_afterPut}
diff --git a/src/test/cord-api/Tests/data/Ch_MultiInstance_VoltTenant.json b/src/test/cord-api/Tests/data/Ch_MultiInstance_VoltTenant.json
index 8c3c51b..7f92d41 100644
--- a/src/test/cord-api/Tests/data/Ch_MultiInstance_VoltTenant.json
+++ b/src/test/cord-api/Tests/data/Ch_MultiInstance_VoltTenant.json
@@ -4,8 +4,7 @@
       "voltTenant" : 
        {
          "s_tag" : 115,
-         "c_tag" : 222,
-         "subscriber_root_id" : ""
+         "c_tag" : 222
        },
        "service_specific_id" : "304"
     },
@@ -13,8 +12,7 @@
      "voltTenant" : 
       {
         "s_tag" : 116,
-        "c_tag" : 333,
-        "subscriber_root_id" : ""
+        "c_tag" : 333
       },
       "service_specific_id" : "305"
     },
@@ -22,8 +20,7 @@
      "voltTenant" :
       {
         "s_tag" : 117,
-        "c_tag" : 444,
-        "subscriber_root_id" : ""
+        "c_tag" : 444
       },
      "service_specific_id" : "306"
     }