diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/E2ENetworkSliceSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/E2ENetworkSliceSpec.groovy
index d6751bb..904e826 100755
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/E2ENetworkSliceSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/E2ENetworkSliceSpec.groovy
@@ -21,25 +21,69 @@
 package org.onap.cps.api.impl
 
 import org.onap.cps.TestUtils
+import org.onap.cps.api.CpsAdminService
+import org.onap.cps.spi.CpsDataPersistenceService
 import org.onap.cps.spi.CpsModulePersistenceService
+import org.onap.cps.spi.model.Anchor
+import org.onap.cps.yang.YangTextSchemaSourceSetBuilder
 import spock.lang.Specification
 
 class E2ENetworkSliceSpec extends Specification {
     def mockModuleStoreService = Mock(CpsModulePersistenceService)
+    def mockDataStoreService = Mock(CpsDataPersistenceService)
+    def mockCpsAdminService = Mock(CpsAdminService)
+    def cpsModuleServiceImpl = new CpsModuleServiceImpl()
+    def cpsDataServiceImple = new CpsDataServiceImpl()
     def mockYangTextSchemaSourceSetCache = Mock(YangTextSchemaSourceSetCache)
-    def objectUnderTest = new CpsModuleServiceImpl()
+
+    def dataspaceName = 'someDataspace'
+    def anchorName = 'someAnchor'
+    def schemaSetName = 'someSchemaSet'
 
     def setup() {
-        objectUnderTest.cpsModulePersistenceService = mockModuleStoreService
-        objectUnderTest.yangTextSchemaSourceSetCache = mockYangTextSchemaSourceSetCache
+        cpsDataServiceImple.cpsDataPersistenceService = mockDataStoreService
+        cpsDataServiceImple.cpsAdminService = mockCpsAdminService
+        cpsDataServiceImple.yangTextSchemaSourceSetCache = mockYangTextSchemaSourceSetCache
+        cpsModuleServiceImpl.yangTextSchemaSourceSetCache = mockYangTextSchemaSourceSetCache
+        cpsModuleServiceImpl.cpsModulePersistenceService = mockModuleStoreService
     }
 
     def 'E2E model can be parsed by CPS.'() {
         given: 'Valid yang resource as name-to-content map'
             def yangResourcesNameToContentMap = TestUtils.getYangResourcesAsMap('e2e/basic/ietf-inet-types.yang','e2e/basic/ietf-yang-types.yang','e2e/basic/ran-network2020-08-06.yang')
         when: 'Create schema set method is invoked'
-            objectUnderTest.createSchemaSet('someDataspace', 'someSchemaSet', yangResourcesNameToContentMap)
+            cpsModuleServiceImpl.createSchemaSet(dataspaceName, schemaSetName, yangResourcesNameToContentMap)
         then: 'Parameters are validated and processing is delegated to persistence service'
-            1 * mockModuleStoreService.storeSchemaSet('someDataspace', 'someSchemaSet', yangResourcesNameToContentMap)
+            1 * mockModuleStoreService.storeSchemaSet(dataspaceName, schemaSetName, yangResourcesNameToContentMap)
+    }
+
+    def 'E2E Coverage Area-Tracking Area & TA-Cell mapping model can be parsed by CPS.'() {
+        given: 'Valid yang resource as name-to-content map'
+            def yangResourcesNameToContentMap = TestUtils.getYangResourcesAsMap(
+                    'e2e/basic/cps-cavsta-onap-internal2021-01-28.yang')
+        when: 'Create schema set method is invoked'
+            cpsModuleServiceImpl.createSchemaSet(dataspaceName, schemaSetName, yangResourcesNameToContentMap)
+        then: 'Parameters are validated and processing is delegated to persistence service'
+            1 * mockModuleStoreService.storeSchemaSet(dataspaceName, schemaSetName, yangResourcesNameToContentMap)
+    }
+
+    def 'E2E Coverage Area-Tracking Area & TA-Cell mapping data can be parsed by CPS.'() {
+        given: 'Valid yang resource as name-to-content map'
+            def yangResourcesNameToContentMap = TestUtils.getYangResourcesAsMap(
+                    'e2e/basic/cps-cavsta-onap-internal2021-01-28.yang')
+            def schemaContext = YangTextSchemaSourceSetBuilder.of(yangResourcesNameToContentMap).getSchemaContext()
+        and : 'a valid json is provided for the model'
+            def jsonData = TestUtils.getResourceFileContent('e2e/basic/Data.txt')
+        and : 'all the further dependencies are mocked '
+            mockCpsAdminService.getAnchor(dataspaceName, anchorName) >>
+                    new Anchor().builder().name(anchorName).schemaSetName(schemaSetName).build()
+            mockYangTextSchemaSourceSetCache.get(dataspaceName, schemaSetName) >>
+                    YangTextSchemaSourceSetBuilder.of(yangResourcesNameToContentMap)
+            mockModuleStoreService.getYangSchemaResources(dataspaceName, schemaSetName) >> schemaContext
+        when: 'saveData method is invoked'
+            cpsDataServiceImple.saveData(dataspaceName, anchorName, jsonData)
+        then: 'Parameters are validated and processing is delegated to persistence service'
+            1 * mockDataStoreService.storeDataNode(dataspaceName, anchorName,
+                    {dataNode -> dataNode.xpath == '/ran-coverage-area' && dataNode.childDataNodes.size() == 4})
     }
 }
diff --git a/cps-service/src/test/resources/e2e/basic/Data.txt b/cps-service/src/test/resources/e2e/basic/Data.txt
new file mode 100644
index 0000000..c10c6d9
--- /dev/null
+++ b/cps-service/src/test/resources/e2e/basic/Data.txt
@@ -0,0 +1,42 @@
+{
+"ran-coverage-area":{
+  "pLMNIdList": [
+    {
+      "mcc": "310",
+      "mnc": "410"
+    },
+    {
+       "mcc": "2310",
+       "mnc": "2410"
+    }
+  ],
+  "coverage-area": [
+    {
+      "coverageArea": "Washington",
+      "coverageAreaTAList": [
+        {
+          "nRTAC": 234,
+          "taCellsList": [
+            {
+              "cellLocalId": 15709
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "coverageArea": "Dublin",
+      "coverageAreaTAList": [
+        {
+          "nRTAC": 2234,
+          "taCellsList": [
+            {
+              "cellLocalId": 15809
+            }
+          ]
+        }
+      ]
+    }
+  ]
+  }
+}
\ No newline at end of file
diff --git a/cps-service/src/test/resources/e2e/basic/cps-cavsta-onap-internal2021-01-28.yang b/cps-service/src/test/resources/e2e/basic/cps-cavsta-onap-internal2021-01-28.yang
new file mode 100644
index 0000000..2a8a925
--- /dev/null
+++ b/cps-service/src/test/resources/e2e/basic/cps-cavsta-onap-internal2021-01-28.yang
@@ -0,0 +1,153 @@
+module cps-cavsta-onap-internal {
+  yang-version 1.1;
+  namespace "org:onap:ccsdk:features:sdnr:northbound:cps-cavsta-onap-internal";
+  prefix onap-cavsta;
+
+    organization
+    "Open Network Automation Platform - ONAP
+     <https://www.onap.org>";
+  contact
+    "Editors:
+       Àhila Pandaram
+       <mailto:ahila.pandaram@wipro.com>
+
+       Swaminathan Seetharaman
+       <mailto:swaminathan.seetharaman@wipro.com>";
+  description
+    "This module contains YANG definitions for the relationship among coverage area, 
+     tracking area list and cells under each tracking area.
+     This relationship is used for internal purpose of ONAP to populate the details.
+
+    Copyright (C) 2020-2021 Wipro Limited.
+    
+    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.";
+
+  revision 2021-01-28 {
+    description
+      "RAN Network YANG Model for ONAP/O-RAN POC";
+    reference
+      "https://wiki.onap.org/display/DW/E2E+Network+Slicing+Use+Case+in+R7+Guilin";
+  }
+
+   typedef Tac {
+    type int64 {
+      range "0..16777215";
+    }
+    description
+      "Tracking Area Code";
+    reference
+      "TS 23.003 clause 19.4.2.3";
+  }  
+   
+
+  typedef Mcc {
+    type string;
+    description
+      "The mobile country code consists of three decimal digits,
+       The first digit of the mobile country code identifies the geographic
+       region (the digits 1 and 8 are not used):";
+    reference
+      "3GPP TS 23.003 subclause 2.2 and 12.1";
+  }
+
+  typedef Mnc {
+    type string;
+    description
+      "The mobile network code consists of two or three
+       decimal digits (for example: MNC of 001 is not the same as MNC of 01)";
+    reference
+      "3GPP TS 23.003 subclause 2.2 and 12.1";
+  }
+
+          
+    grouping trackingAreaGroup{
+  		 leaf nRTAC {
+      type Tac;
+      description "Identity of the common Tracking Area Code for the PLMNs
+        allowedValues:
+        a) It is the TAC or Extended-TAC. 
+        b) A cell can only broadcast one TAC or Extended-TAC. 
+          See TS 36.300, subclause 10.1.7 (PLMNID and TAC relation).
+        c) TAC is defined in subclause 19.4.2.3 of 3GPP TS 23.003 and 
+          Extended-TAC is defined in subclause 9.3.1.29 of 3GPP TS 38.473.
+        d) For a 5G SA (Stand Alone), it has a non-null value.";
+    }
+  		list taCellsList{
+        key cellLocalId;
+        leaf cellLocalId {
+      description "Identifies an NR cell of a gNB. Together with corresponding
+        gNB ID it forms the NR Cell Identifier (NCI).";
+        mandatory true;
+        type int32 { range "0..16383"; }
+    }
+    }
+  	}
+    
+    grouping PLMNId {
+    description
+      "It specifies the PLMN identifier to be used as part of the global RAN node identity";
+    reference
+      "TS 23.658";
+    leaf mcc {
+      type Mcc;
+      mandatory true;
+      description
+        "The mobile country code consists of three decimal digits,
+       The first digit of the mobile country code identifies the geographic
+       region (the digits 1 and 8 are not used)";
+    }
+    leaf mnc {
+      type Mnc;
+      mandatory true;
+      description
+        "The mobile network code consists of two or three
+       decimal digits (for example: MNC of 001 is not the same as MNC of 01)";
+    }
+  }
+
+    
+    grouping coverageAreaGroup{
+      leaf coverageArea{
+      description "An attribute specifies the coverage area of the network slice, 
+      i.e. the geographic region where a 3GPP communication service is accessible,
+      see Table 7.1-1 of TS 22.261 [28]) and NG.116 [50].";
+      type string;
+    }
+    
+      list coverageAreaTAList{
+       uses trackingAreaGroup;
+       key "nRTAC";
+       description "This list contains the tracking area list for the coverageArea";
+    }
+    }
+    
+    container ran-coverage-area{
+    
+      list pLMNIdList {
+      description "List of at most six entries of PLMN Identifiers, but at least 
+        one (the primary PLMN Id).
+        The PLMN Identifier is composed of a Mobile Country Code (MCC) and a 
+        Mobile Network Code (MNC).";
+      key "mcc mnc";
+      uses PLMNId;
+    }
+
+      
+      list coverage-area{
+        uses coverageAreaGroup;
+        key "coverageArea";
+        description "This list contains the list of coverage area of a PLMNID";
+      }
+    
+    }
+    }