diff --git a/js/core/telemetrySyncManager.js b/js/core/telemetrySyncManager.js
index 9c97642..64aaec9 100644
--- a/js/core/telemetrySyncManager.js
+++ b/js/core/telemetrySyncManager.js
@@ -42,28 +42,27 @@ var TelemetrySyncManager = {
                 return;
             }
             telemetryObj = {
-                "id": "api.sunbird.telemetry",
-                "ver": Telemetry._version,
-                "params": {
-                    "msgid": CryptoJS.MD5(JSON.stringify(telemetryEvents)).toString(),
-                },
-                "ets": (new Date()).getTime() + ((Telemetry.config.timeDiff*1000) || 0),
-                "events": telemetryEvents
+                "data": {
+                    "id": "api.mosip.telemetry",
+                    "params": {
+                        "msgid": CryptoJS.MD5(JSON.stringify(telemetryEvents)).toString(),
+                    },
+                    "ets": getUTCTime(),
+                    "events": telemetryEvents
+                }
             };
         }
         var headersParam = {};
-        if ('undefined' != typeof Telemetry.config.authtoken)
-            headersParam["Authorization"] = 'Bearer ' + Telemetry.config.authtoken;
+        /* if ('undefined' != typeof Telemetry.config.authtoken)
+            headersParam["Authorization"] = 'Bearer ' + Telemetry.config.authtoken; */
         var fullPath = Telemetry.config.host + Telemetry.config.apislug + Telemetry.config.endpoint;
         headersParam['dataType'] = 'json';
         headersParam["Content-Type"] = "application/json";
-        headersParam['x-app-id'] = Telemetry.config.pdata.id;
-        headersParam['x-device-id'] = Telemetry.fingerPrintId;
-        headersParam['x-channel-id'] = Telemetry.config.channel;
+
         axios.post(
             fullPath,
             JSON.stringify(telemetryObj),
-            {headers: {headersParam}}
+            {headers: headersParam}
         )
         .then((result) => {
             Telemetry.config.telemetryDebugEnabled && console.log("Telemetry API success", result);
@@ -73,9 +72,9 @@ var TelemetrySyncManager = {
                 instance._failedBatch.push(telemetryObj);
             }
             if (error.status == 403) {
-                console.error("Authentication error: ", error);
+                console.error("Authentication error: ", JSON.stringify(error));
             } else {
-                console.log("Error while Telemetry sync to server: ", error);
+                console.log("Error while Telemetry sync to server: ", JSON.stringify(error));
             }
         });
     },
diff --git a/js/core/telemetryV3Interface.js b/js/core/telemetryV3Interface.js
index 89341e9..33448ff 100644
--- a/js/core/telemetryV3Interface.js
+++ b/js/core/telemetryV3Interface.js
@@ -1,10 +1,3 @@
-/**
- * Telemetry V3 Library
- * @author Manjunath Davanam <manjunathd@ilimi.in>
- * @author Akash Gupta <Akash.Gupta@tarento.com> 
- */
-
-// To support for node server environment 
 if (typeof require === "function") {
     var Ajv = require('ajv')
 }
@@ -15,6 +8,10 @@ var libraryDispatcher = {
   }
 };
 
+let getUTCTime =  function (){
+    return Date.parse(new Date().toUTCString())
+}
+
 const EventListener = function() {
     const events = {};
   
@@ -48,41 +45,38 @@ var Telemetry = (function() {
     var telemetryInstance = this;
     this.telemetry.initialized = false;
     this.telemetry.config = {};
-    this.telemetry._version = "3.0";
-    this.telemetry.fingerPrintId = undefined;
     EventListener.call(this);
     this.dispatcher = libraryDispatcher;
     this.dispatcher.dispatch = this.dispatcher.dispatch.bind(this);
   
     this._defaultValue = {
-            uid: "anonymous",
-            authtoken: "",
-            batchsize: 20,
-            host: "https://api.ekstep.in",
-            endpoint: "/data/v3/telemetry",
-            apislug: "/action",
-        },
-        this.telemetryEnvelop = {
-            "eid": "",
-            "ets": "",
-            "ver": "",
-            "mid": '',
-            "actor": {},
-            "context": {},
-            "object": {},
-            "tags": [],
-            "edata": ""
-        }
+        uid: "",
+        authtoken: "",
+        batchsize: 20,
+        host: "",
+        endpoint: "",
+        apislug: "",
+    },
+    this.telemetryEnvelop = {
+        "eid": "",
+        "ets": "",
+        "mid": "",
+        "sid": "",
+        "appid":"",
+        "actor": {},
+        "edata": ""
+    }
     this._globalContext = {
-        "channel": 'in.ekstep',
-        "pdata": { id: "in.ekstep", ver: "1.0", pid: "" },
-        "env": "contentplayer",
+        "channel": '',
+        "pdata": { id: "", ver: "", pid: "" },
+        "env": "",
         "sid": "",
         "did": "",
+        "appid":"",
         "cdata": [],
         "rollup": {}
     };
-    this.runningEnv = 'client';
+    //this.runningEnv = 'client';
     this.enableValidation = false;
     this._globalObject = {};
     this.startData = [];
@@ -106,7 +100,7 @@ var Telemetry = (function() {
      * @param  {object} options    [It can have `context, object, actor` can be explicitly passed in this event]
      */
     this.telemetry.start = function(config, contentId, contentVer, data, options) {
-        data.duration = data.duration || (((new Date()).getTime()) * 0.001); // Converting duration miliSeconds to seconds
+        //data.duration = data.duration || (getUTCTime() * 0.001); // Converting duration miliSeconds to seconds
         if (contentId && contentVer) {
             telemetryInstance._globalObject.id = contentId;
             telemetryInstance._globalObject.ver = contentVer;
@@ -279,6 +273,11 @@ var Telemetry = (function() {
         instance._dispatch(instance.getEvent('SUMMARY', data));
     }
 
+    this.telemetry.appinfo = function(data, options) {
+        instance.updateValues(options);
+        instance._dispatch(instance.getEvent('APPINFO', data));
+    }
+
     /**
      * Which is used to log the end telemetry event.
      * @param  {object} data       [data which is need to pass in this event ex: {"type":"player","mode":"ContentPlayer","pageid":"splash"}]
@@ -287,7 +286,7 @@ var Telemetry = (function() {
     this.telemetry.end = function(data, options) {
         if (telemetryInstance.startData.length) {
             var startEventObj = telemetryInstance.startData.pop();
-            data.duration = ((new Date()).getTime() - startEventObj.ets) * 0.001; // Converting duration miliSeconds to seconds
+            data.duration = (getUTCTime() - startEventObj.ets) * 0.001; // Converting duration miliSeconds to seconds
             instance.updateValues(options);
             instance._dispatch(instance.getEvent('END', data));
         } else {
@@ -316,17 +315,16 @@ var Telemetry = (function() {
      * @param  {object} object [Object value]
      */
     this.telemetry.resetObject = function(object) {
-            telemetryInstance._currentObject = object || {};
-        },
-
-        /**
-         * Which is used to reset the current actor value.
-         * @param  {object} object [Object value]
-         */
-        this.telemetry.resetActor = function(actor) {
-            telemetryInstance._currentActor = actor || {};
-        }
+        telemetryInstance._currentObject = object || {};
+    },
 
+    /**
+     * Which is used to reset the current actor value.
+     * @param  {object} object [Object value]
+     */
+    this.telemetry.resetActor = function(actor) {
+        telemetryInstance._currentActor = actor || {};
+    }
 
     /**
      * Which is used to reset the current actor value.
@@ -375,34 +373,18 @@ var Telemetry = (function() {
     instance._dispatch = function(message) {
         message.mid = message.eid + ':' + CryptoJS.MD5(JSON.stringify(message)).toString();
         if (telemetryInstance.enableValidation) {
-            var validate = ajv.getSchema('http://api.ekstep.org/telemetry/' + message.eid.toLowerCase())
+            var schemaBaseUrl = 'http://api.ekstep.org/telemetry/';
+            if(telemetry.config.schemaBaseUrl){
+                schemaBaseUrl = telemetry.config.schemaBaseUrl;
+            }
+            var validate = ajv.getSchema(schemaBaseUrl + message.eid.toLowerCase())
             var valid = validate(message)
             if (!valid) {
                 console.error('Invalid ' + message.eid + ' Event: ' + ajv.errorsText(validate.errors))
                 return
             }
         }
-        if (telemetryInstance.runningEnv === 'client') {
-            if (!message.context.did) {
-                if (!Telemetry.fingerPrintId) {
-                    Telemetry.getFingerPrint(function(result, components) {
-                        message.context.did = result;
-                        message.actor.id = instance.getActorId(message.actor.id, result);
-                        Telemetry.fingerPrintId = result;
-                        dispatcher.dispatch(message);
-                    })
-                } else {
-                    message.context.did = Telemetry.fingerPrintId;
-                    message.actor.id = instance.getActorId(message.actor.id, Telemetry.fingerPrintId);
-                    dispatcher.dispatch(message);
-                }
-            } else {
-                message.actor.id = instance.getActorId(message.actor.id, message.context.did);
-                dispatcher.dispatch(message);
-            }
-        } else {
-            dispatcher.dispatch(message);
-        }
+        dispatcher.dispatch(message);   
     }
 
     /**
@@ -427,14 +409,10 @@ var Telemetry = (function() {
      */
     instance.getEvent = function(eventId, data) {
         telemetryInstance.telemetryEnvelop.eid = eventId;
-        // timeDiff (in sec) is diff of server date and local date 
-        telemetryInstance.telemetryEnvelop.ets = (new Date()).getTime() + ((Telemetry.config.timeDiff*1000) || 0);
-        telemetryInstance.telemetryEnvelop.ver = Telemetry._version;
+        telemetryInstance.telemetryEnvelop.ets = getUTCTime();
+        telemetryInstance.telemetryEnvelop.sid = Telemetry.config.sid;
         telemetryInstance.telemetryEnvelop.mid = '';
-        telemetryInstance.telemetryEnvelop.actor = Object.assign({}, { "id": Telemetry.config.uid || 'anonymous', "type": 'User' }, instance.getUpdatedValue('actor'));
-        telemetryInstance.telemetryEnvelop.context = Object.assign({}, instance.getGlobalContext(), instance.getUpdatedValue('context'));
-        telemetryInstance.telemetryEnvelop.object = Object.assign({}, instance.getGlobalObject(), instance.getUpdatedValue('object'));
-        telemetryInstance.telemetryEnvelop.tags = Object.assign([], Telemetry.config.tags, instance.getUpdatedValue('tags'));
+        telemetryInstance.telemetryEnvelop.appid = Telemetry.config.appid;
         telemetryInstance.telemetryEnvelop.edata = data;
         return telemetryInstance.telemetryEnvelop;
     }
@@ -450,10 +428,9 @@ var Telemetry = (function() {
         config.rollup && (telemetryInstance._globalContext.rollup = config.rollup);
         config.sid && (telemetryInstance._globalContext.sid = config.sid);
         config.did && (telemetryInstance._globalContext.did = config.did);
+        config.appid && (telemetryInstance._globalContext.appid = config.appid);
         config.cdata && (telemetryInstance._globalContext.cdata = config.cdata);
         config.pdata && (telemetryInstance._globalContext.pdata = config.pdata);
-
-
     }
 
     /**
@@ -535,60 +512,7 @@ var Telemetry = (function() {
             return target;
         }
     }
-    var FPoptions = {
-        audio: {
-            timeout: 1000,
-            // On iOS 11, audio context can only be used in response to user interaction.
-            // We require users to explicitly enable audio fingerprinting on iOS 11.
-            // See https://stackoverflow.com/questions/46363048/onaudioprocess-not-called-on-ios11#46534088
-            excludeIOS11: true
-        },
-        fonts: {
-            swfContainerId: 'fingerprintjs2',
-            swfPath: 'flash/compiled/FontList.swf',
-            userDefinedFonts: [],
-            extendedJsFonts: false
-        },
-        screen: {
-            // To ensure consistent fingerprints when users rotate their mobile devices
-            detectScreenOrientation: true
-        },
-        plugins: {
-            sortPluginsFor: [/palemoon/i],
-            excludeIE: false
-        },
-        extraComponents: [],
-        excludes: {
-            // Unreliable on Windows, see https://github.com/Valve/fingerprintjs2/issues/375
-            'enumerateDevices': true,
-            // devicePixelRatio depends on browser zoom, and it's impossible to detect browser zoom
-            'pixelRatio': true,
-            // DNT depends on incognito mode for some browsers (Chrome) and it's impossible to detect incognito mode
-            'doNotTrack': true,
-            // uses js fonts already
-            'fontsFlash': true,
-            'screenResolution': true,
-            'availableScreenResolution': true
-        },
-        NOT_AVAILABLE: 'not available',
-        ERROR: 'error',
-        EXCLUDED: 'excluded'
-    }
-    this.telemetry.getFingerPrint = function (cb) {
-        const ver = 'v1';
-        if (localStorage && localStorage.getItem(`fpDetails_${ver}`)) {
-            var deviceDetails = JSON.parse(localStorage.getItem(`fpDetails_${ver}`));
-             if (cb) cb(deviceDetails.result, deviceDetails.components, ver);
-          } else {
-            Fingerprint2.getV18(FPoptions, function (result, components) {
-                if (localStorage) {
-                    // fpDetails contains components and deviceId generated from fingerprintJs
-                    localStorage.setItem(`fpDetails_${ver}`, JSON.stringify({result: result, components: components}))
-                }
-            if (cb) cb(result, components, ver)
-            })
-          } 
-    }
+
     if (typeof Object.assign != 'function') {
         instance.objectAssign();
     }
@@ -596,18 +520,6 @@ var Telemetry = (function() {
     return this.telemetry;
 })();
 
-/**
- * Name space which is being fallowed
- * @type {[type]}
- */
-
 EkTelemetry = $t = Telemetry;
 
-
-
-/**
- * To support for the node backEnd, So any node developer can import this telemetry lib.
- */
-if (typeof module != 'undefined') {
-    module.exports = Telemetry;
-}
\ No newline at end of file
+module.exports = Telemetry;
\ No newline at end of file
diff --git a/js/package.json b/js/package.json
index 4cf5f06..74c065f 100644
--- a/js/package.json
+++ b/js/package.json
@@ -62,6 +62,7 @@
     },
     "homepage": "https://github.com/project-sunbird/sunbird-telemetry-sdk/tree/master/js#readme",
     "dependencies": {
+        "axios": "^1.4.0",
         "grunt-karma": "^0.12.2",
         "karma": "^3.0.0"
     }
diff --git a/js/schema/mosip_actor.json b/js/schema/mosip_actor.json
index 6d5dc16..757b215 100644
--- a/js/schema/mosip_actor.json
+++ b/js/schema/mosip_actor.json
@@ -8,6 +8,5 @@
     "type": {
       "type": "string"
     }
-  },
-  "required": [ "type", "id"]
+  }
 }
\ No newline at end of file
diff --git a/js/schema/mosip_app_info.json b/js/schema/mosip_app_info.json
new file mode 100644
index 0000000..541d9b6
--- /dev/null
+++ b/js/schema/mosip_app_info.json
@@ -0,0 +1,78 @@
+{
+    "$id": "http://mosip.io/telemetry/appinfo",
+    "type": "object",
+    "required": ["eid", "edata"],
+    "allOf": [
+      {
+        "$ref": "http://mosip.io/telemetry/common"
+      },
+      {
+        "properties": {
+          "eid": {
+            "type": "string",
+            "enum": ["APPINFO"]
+          },
+          "edata": {
+            "type": "object",
+            "additionalProperties": false,
+            "properties": {
+              "env": {
+                "type": "string",
+                "minLength": 1
+              },
+              "injiVersion": {
+                "type": "string",
+                "minLength": 1
+              },
+              "tuvaliVersion": {
+                "type": "string",
+                "minLength": 1
+              },
+              "buildNumber": {
+                "type": "string",
+                "minLength": 1
+              },
+              "preferredLanguage": {
+                "type": "string"
+              },
+              "brandName": {
+                "type": "string",
+                "minLength": 1
+              },
+              "modelName": {
+                "type": "string",
+                "minLength": 1
+              },
+              "osName": {
+                "type": "string",
+                "minLength": 1
+              },
+              "osVersion": {
+                "type": "string",
+                "minLength": 1
+              },
+              "osApiLevel": {
+                "type": "string",
+                "minLength": 1
+              },
+              "isHardwareKeystoreSupported": {
+                "type": "boolean",
+                "minLength": 1
+              },
+              "dateTime": {
+                "type": "number",
+                "minLength": 1
+              },
+              "zone": {
+                "type": "string",
+                "minLength": 1
+              },
+              "offset": {
+                "type": "number"
+              }
+            }
+          }
+        }
+      }
+    ]
+  }
\ No newline at end of file
diff --git a/js/schema/mosip_common.json b/js/schema/mosip_common.json
index 874e95e..ce51364 100644
--- a/js/schema/mosip_common.json
+++ b/js/schema/mosip_common.json
@@ -1,31 +1,30 @@
 {
-    "$id": "http://mosip.io/telemetry/common",
-    "type": "object",
-    "properties": {
-      "ets": {
-        "type": "number",
-        "format": "date-time"
-      },
-      "ver": {
-        "type": "string"
-      },
-      "mid": {
-        "type": "string",
-        "minLength": 1
-      },
-      "object": {
-        "type": "object",
-        "properties": {},
-        "required": []
-      },
-      "actor": {
-        "$ref": "http://mosip.io/telemetry/actor"
-      },
-      "context": {
-        "$ref": "http://mosip.io/telemetry/context"
-      },
-      "tags": {
-        "$ref": "http://mosip.io/telemetry/tags"
+  "$id": "http://mosip.io/telemetry/common",
+  "type": "object",
+  "required": ["ets", "sid", "mid", "appid", "actor"],
+  "allOf": [
+    {
+      "$ref": "http://mosip.io/telemetry/actor"
+    },
+    {
+      "properties": {
+        "ets": {
+          "type": "number",
+          "format": "date-time"
+        },
+        "mid": {
+          "type": "string",
+          "minLength": 1
+        },
+        "sid": {
+          "type": "string",
+          "minLength": 1
+        },
+        "appid": {
+          "type": "string",
+          "minLength": 1
+        }
       }
     }
-  }
\ No newline at end of file
+  ]
+}
diff --git a/js/schema/mosip_context.json b/js/schema/mosip_context.json
deleted file mode 100644
index b631102..0000000
--- a/js/schema/mosip_context.json
+++ /dev/null
@@ -1,31 +0,0 @@
-{
-  "$id": "http://mosip.io/telemetry/context",
-  "type": "object",
-  "properties": {
-    "channel": {
-      "type": "string"
-    },
-    "pdata": {
-      "$ref": "http://mosip.io/telemetry/pdata"
-    },
-    "env": {
-      "type": "string"
-    },
-    "sid": {
-      "type": "string"
-    },
-    "did": {
-      "type": "string"
-    },
-    "cdata": {
-      "type": "array",
-      "items": {}
-    },
-    "rollup": {
-      "type": "object",
-      "properties": {},
-      "required": []
-    }
-  },
-  "required": ["env", "sid", "did"]
-}
diff --git a/js/schema/mosip_end.json b/js/schema/mosip_end.json
index 30188e8..375fa40 100644
--- a/js/schema/mosip_end.json
+++ b/js/schema/mosip_end.json
@@ -1,7 +1,7 @@
 {
   "$id": "http://mosip.io/telemetry/end",
   "type": "object",
-  "required": ["eid", "ets", "mid", "tags", "edata"],
+  "required": ["eid", "edata"],
   "allOf": [
     {
       "$ref": "http://mosip.io/telemetry/common"
@@ -15,12 +15,18 @@
         "edata": {
           "type": "object",
           "additionalProperties": false,
+          "required": ["type", "status", "duration"],
           "properties": {
             "type": {
               "type": "string"
+            },
+            "status": {
+              "type": "string"
+            },
+            "duration": {
+              "type": "number"
             }
-          },
-          "required": ["type"]
+          }
         }
       }
     }
diff --git a/js/schema/mosip_error.json b/js/schema/mosip_error.json
index 78d1e55..0db1f1d 100644
--- a/js/schema/mosip_error.json
+++ b/js/schema/mosip_error.json
@@ -1,7 +1,7 @@
 {
   "$id": "http://mosip.io/telemetry/error",
   "type": "object",
-  "required": ["eid", "ets", "mid", "tags","edata"],
+  "required": ["eid", "edata"],
   "allOf": [
     {
       "$ref": "http://mosip.io/telemetry/common"
@@ -17,6 +17,9 @@
           "additionalProperties": false,
           "required": ["errorId", "errorMessage", "stacktrace"],
           "properties": {
+            "type": {
+              "type": "string"
+            },
             "errorId": {
               "type": "string"
             },
@@ -25,6 +28,60 @@
             },
             "stacktrace": {
               "type": "string"
+            },
+            "env": {
+              "type": "string",
+              "minLength": 1
+            },
+            "injiVersion": {
+              "type": "string",
+              "minLength": 1
+            },
+            "tuvaliVersion": {
+              "type": "string",
+              "minLength": 1
+            },
+            "buildNumber": {
+              "type": "string",
+              "minLength": 1
+            },
+            "preferredLanguage": {
+              "type": "string"
+            },
+            "brandName": {
+              "type": "string",
+              "minLength": 1
+            },
+            "modelName": {
+              "type": "string",
+              "minLength": 1
+            },
+            "osName": {
+              "type": "string",
+              "minLength": 1
+            },
+            "osVersion": {
+              "type": "string",
+              "minLength": 1
+            },
+            "osApiLevel": {
+              "type": "string",
+              "minLength": 1
+            },
+            "isHardwareKeystoreSupported": {
+              "type": "string",
+              "minLength": 1
+            },
+            "dateTime": {
+              "type": "string",
+              "minLength": 1
+            },
+            "zone": {
+              "type": "string",
+              "minLength": 1
+            },
+            "offset": {
+              "type": "number"
             }
           }
         }
diff --git a/js/schema/mosip_impression.json b/js/schema/mosip_impression.json
index 64d8a32..a110b71 100644
--- a/js/schema/mosip_impression.json
+++ b/js/schema/mosip_impression.json
@@ -1,7 +1,7 @@
 {
   "$id": "http://mosip.io/telemetry/impression",
   "type": "object",
-  "required": ["eid", "ets", "mid", "tags", "edata"],
+  "required": ["eid", "edata"],
   "allOf": [
     {
       "$ref": "http://mosip.io/telemetry/common"
diff --git a/js/schema/mosip_interact.json b/js/schema/mosip_interact.json
index cbe5e39..60f0d4a 100644
--- a/js/schema/mosip_interact.json
+++ b/js/schema/mosip_interact.json
@@ -1,7 +1,7 @@
 {
   "$id": "http://mosip.io/telemetry/interact",
   "type": "object",
-  "required": ["eid", "ets", "mid", "tags", "edata"],
+  "required": ["eid", "edata"],
   "allOf": [
     {
       "$ref": "http://mosip.io/telemetry/common"
@@ -15,6 +15,7 @@
         "edata": {
           "type": "object",
           "additionalProperties": false,
+          "required": ["type", "subtype"],
           "properties": {
             "type": {
               "type": "string"
@@ -22,9 +23,7 @@
             "subtype": {
               "type": "string"
             }
-        
-          },
-          "required": ["type","subtype"]
+          }
         }
       }
     }
diff --git a/js/schema/mosip_log.json b/js/schema/mosip_log.json
index 7c11fdc..7b81386 100644
--- a/js/schema/mosip_log.json
+++ b/js/schema/mosip_log.json
@@ -1,7 +1,7 @@
 {
   "$id": "http://mosip.io/telemetry/log",
   "type": "object",
-  "required": ["eid", "ets", "mid", "tags","edata"],
+  "required": ["eid", "edata"],
   "allOf": [
     {
       "$ref": "http://mosip.io/telemetry/common"
@@ -9,7 +9,7 @@
     {
       "properties": {
         "eid": {
-          "$id": "http://mosip.io/telemetry/eid",
+          "type": "string",
           "enum": ["LOG"]
         },
         "edata": {
diff --git a/js/schema/mosip_pdata.json b/js/schema/mosip_pdata.json
deleted file mode 100644
index 13f2340..0000000
--- a/js/schema/mosip_pdata.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "$id": "http://mosip.io/telemetry/pdata",
-  "type": "object",
-  "properties": {
-    "id": {
-      "type": "string"
-    },
-    "ver": {
-      "type": "string"
-    }, 
-    "pid": {
-      "type": "string"
-    }
-  },
-  "required": []
-}
\ No newline at end of file
diff --git a/js/schema/mosip_start.json b/js/schema/mosip_start.json
index 337b2ee..822d6e7 100644
--- a/js/schema/mosip_start.json
+++ b/js/schema/mosip_start.json
@@ -1,7 +1,7 @@
 {
   "$id": "http://mosip.io/telemetry/start",
   "type": "object",
-  "required": ["eid", "ets", "mid", "tags", "edata"],
+  "required": ["eid", "edata"],
   "allOf": [
     {
       "$ref": "http://mosip.io/telemetry/common"
@@ -18,12 +18,9 @@
           "properties": {
             "type": {
               "type": "string"
-            },
-            "duration": {
-              "type": "number"
             }
           },
-          "required": ["type", "duration"]
+          "required": ["type"]
         }
       }
     }
diff --git a/js/schema/mosip_tags.json b/js/schema/mosip_tags.json
deleted file mode 100644
index cafdff9..0000000
--- a/js/schema/mosip_tags.json
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-  "$id": "http://mosip.io/telemetry/tags",
-  "type": "array",
-  "items": {
-    "type": "object",
-    "properties": {
-      "osName": {
-        "type": "string",
-        "minLength": 1
-      },
-      "osVersion": {
-        "type": "string",
-        "minLength": 1
-      },
-      "injiVersion": {
-        "type": "string",
-        "minLength": 1
-      },
-      "tuvaliVersion": {
-        "type": "string",
-        "minLength": 1
-      }
-    },
-    "required": ["osName", "osVersion", "injiVersion", "tuvaliVersion"]
-  }
-}
diff --git a/js/schema/telemetry-spec.js b/js/schema/telemetry-spec.js
index ebcffc3..2ae3f79 100644
--- a/js/schema/telemetry-spec.js
+++ b/js/schema/telemetry-spec.js
@@ -1 +1 @@
-var telemetrySchema = [{"$id":"http://api.ekstep.org/telemetry/actor","type":"object","properties":{"id":{"$id":"http://api.ekstep.org/telemetry/actor/id","type":"string"},"type":{"$id":"http://api.ekstep.org/telemetry/actor/type","type":"string"}},"required":["type","id"]},{"$id":"http://api.ekstep.org/telemetry/assess","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["ASSESS"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"required":["item","pass","score","resvalues","duration"],"properties":{"item":{"$ref":"http://api.ekstep.org/telemetry/question"},"index":{"$id":"http://api.ekstep.org/telemetry/edata/index","type":"number"},"pass":{"$id":"http://api.ekstep.org/telemetry/edata/pass","type":"string"},"score":{"$id":"http://api.ekstep.org/telemetry/edata/score","type":"number"},"resvalues":{"$id":"http://api.ekstep.org/telemetry/edata/resvalues","type":"array","items":{"type":"object"}},"duration":{"$id":"http://api.ekstep.org/telemetry/edata/duration","type":"number"}}}}}]},{"$id":"http://api.ekstep.org/telemetry/audit","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["AUDIT"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"properties":{"props":{"$id":"http://api.ekstep.org/telemetry/edata/props","type":"array","items":{"type":"string"}},"state":{"$id":"http://api.ekstep.org/telemetry/edata/state","type":"string"},"prevstate":{"$id":"http://api.ekstep.org/telemetry/edata/prevstate","type":"string"}}}}}]},{"$id":"http://api.ekstep.org/telemetry/cdata","type":"array","items":{"type":"object","properties":{"type":{"$id":"http://api.ekstep.org/telemetry/cdata/type","type":"string"},"id":{"$id":"http://api.ekstep.org/telemetry/cdata/id","type":"string"}},"additionalProperties":false,"required":["type","id"]}},{"$id":"http://api.ekstep.org/telemetry/common","type":"object","properties":{"ets":{"$id":"http://api.ekstep.org/telemetry/ets","type":"number","format":"date-time"},"ver":{"$id":"http://api.ekstep.org/telemetry/ver","type":"string","enum":["3.0"]},"mid":{"$id":"http://api.ekstep.org/telemetry/mid","type":"string","minLength":1},"actor":{"$ref":"http://api.ekstep.org/telemetry/actor"},"context":{"$ref":"http://api.ekstep.org/telemetry/context"},"object":{"$ref":"http://api.ekstep.org/telemetry/object"},"tags":{"type":"array","items":{"type":"string"}}}},{"$id":"http://api.ekstep.org/telemetry/context","type":"object","properties":{"channel":{"$id":"http://api.ekstep.org/telemetry/context/channel","type":"string","minLength":1},"pdata":{"$ref":"http://api.ekstep.org/telemetry/pdata"},"env":{"$id":"http://api.ekstep.org/telemetry/context/env","type":"string"},"sid":{"$id":"http://api.ekstep.org/telemetry/context/sid","type":"string"},"did":{"$id":"http://api.ekstep.org/telemetry/context/did","type":"string"},"cdata":{"$ref":"http://api.ekstep.org/telemetry/cdata"}},"required":["channel","env","pdata"]},{"$id":"http://api.ekstep.org/telemetry/dspec","type":"object","properties":{"os":{"$id":"http://api.ekstep.org/telemetry/dspec/os","type":"string"},"make":{"$id":"http://api.ekstep.org/telemetry/dspec/make","type":"string"},"id":{"$id":"http://api.ekstep.org/telemetry/dspec/id","type":"string"},"mem":{"$id":"http://api.ekstep.org/telemetry/dspec/mem","type":"number","minimum":-1},"idisk":{"$id":"http://api.ekstep.org/telemetry/dspec/idisk","type":"number","minimum":-1},"edisk":{"$id":"http://api.ekstep.org/telemetry/dspec/edisk","type":"number","minimum":-1},"scrn":{"$id":"http://api.ekstep.org/telemetry/dspec/scrn","type":"number","minimum":-1},"camera":{"$id":"http://api.ekstep.org/telemetry/dspec/camera","type":"string"},"cpu":{"$id":"http://api.ekstep.org/telemetry/dspec/cpu","type":"string"},"sims":{"$id":"http://api.ekstep.org/telemetry/dspec/sims","type":"number","minimum":-1},"cap":{"$id":"http://api.ekstep.org/telemetry/dspec/cap","type":"array","items":{"type":"string"}}}},{"$id":"http://api.ekstep.org/telemetry/end","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["END"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"required":["type"],"properties":{"type":{"$id":"http://api.ekstep.org/telemetry/edata/type","type":"string"},"mode":{"$id":"http://api.ekstep.org/telemetry/edata/mode","type":"string"},"duration":{"$id":"http://api.ekstep.org/telemetry/edata/duration","type":"number"},"pageid":{"$id":"http://api.ekstep.org/telemetry/edata/pageid","type":"string"},"summary":{"$id":"http://api.ekstep.org/telemetry/edata/summary","type":"array","items":{"type":"object"}}}}}}]},{"$id":"http://api.ekstep.org/telemetry/error","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["ERROR"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"required":["err","errtype","stacktrace"],"properties":{"err":{"$id":"http://api.ekstep.org/telemetry/edata/err","type":"string"},"errtype":{"$id":"http://api.ekstep.org/telemetry/edata/errtype","type":"string"},"stacktrace":{"$id":"http://api.ekstep.org/telemetry/edata/stacktrace","type":"string"},"traceid":{"$id":"http://api.ekstep.org/telemetry/edata/traceid","type":"string"},"pageid":{"$id":"http://api.ekstep.org/telemetry/edata/pageid","type":"string"},"object":{"$ref":"http://api.ekstep.org/telemetry/inlineobject"},"plugin":{"$ref":"http://api.ekstep.org/telemetry/plugin"}}}}}]},{"$id":"http://api.ekstep.org/telemetry/exdata","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["EXDATA"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"properties":{"type":{"$id":"http://api.ekstep.org/telemetry/edata/type","type":"string"},"data":{"$id":"http://api.ekstep.org/telemetry/edata/data","type":"string"}}}}}]},{"$id":"http://api.ekstep.org/telemetry/feedback","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["FEEDBACK"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"properties":{"rating":{"$id":"http://api.ekstep.org/telemetry/edata/rating","type":"number"},"comments":{"$id":"http://api.ekstep.org/telemetry/edata/comments","type":"string"}}}}}]},{"$id":"http://api.ekstep.org/telemetry/heartbeat","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["HEARTBEAT"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object"}}}]},{"$id":"http://api.ekstep.org/telemetry/impression","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["IMPRESSION"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"object","additionalProperties":false,"required":["type","pageid","uri"],"properties":{"type":{"$id":"http://api.ekstep.org/telemetry/edata/type","type":"string"},"subtype":{"$id":"http://api.ekstep.org/telemetry/edata/subtype","type":"string"},"pageid":{"$id":"http://api.ekstep.org/telemetry/edata/pageid","type":"string"},"uri":{"$id":"http://api.ekstep.org/telemetry/edata/uri","type":"string"},"duration":{"$id":"http://api.ekstep.org/telemetry/edata/duration","type":"number"},"visits":{"$id":"http://api.ekstep.org/telemetry/edata/visits","type":"array","items":{"type":"object","properties":{"objid":{"$id":"http://api.ekstep.org/telemetry/edata/visits/objid","type":"string"},"objtype":{"$id":"http://api.ekstep.org/telemetry/edata/visits/objtype","type":"string"},"objver":{"$id":"http://api.ekstep.org/telemetry/edata/visits/objver","type":"string"},"section":{"$id":"http://api.ekstep.org/telemetry/edata/visits/section","type":"string"},"index":{"$id":"http://api.ekstep.org/telemetry/edata/visits/index","type":"number"}},"additionalProperties":false,"required":["objid","objtype"]}}}}}}]},{"$id":"http://api.ekstep.org/telemetry/inlineobject","type":"object","additionalProperties":false,"required":["id","type","ver"],"properties":{"id":{"$id":"http://api.ekstep.org/telemetry/inlineobject/id","type":"string"},"type":{"$id":"http://api.ekstep.org/telemetry/inlineobject/type","type":"string"},"ver":{"$id":"http://api.ekstep.org/telemetry/inlineobject/ver","type":"string"},"subtype":{"$id":"http://api.ekstep.org/telemetry/inlineobject/subtype","type":"string"},"name":{"$id":"http://api.ekstep.org/telemetry/inlineobject/name","type":"string"},"code":{"$id":"http://api.ekstep.org/telemetry/inlineobject/code","type":"string"},"parent":{"$ref":"http://api.ekstep.org/telemetry/parent"}}},{"$id":"http://api.ekstep.org/telemetry/interact","type":"object","required":["eid","ets","ver","mid","actor","context","edata"],"allOf":[{"$ref":"http://api.ekstep.org/telemetry/common"},{"properties":{"eid":{"$id":"http://api.ekstep.org/telemetry/eid","enum":["INTERACT"]},"edata":{"$id":"http://api.ekstep.org/telemetry/edata","type":"ob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