diff --git a/backend/src/modules/rest/auth/app/auth.app.service.ts b/backend/src/modules/rest/auth/app/auth.app.service.ts
index 37faf41..0d2c3cc 100644
--- a/backend/src/modules/rest/auth/app/auth.app.service.ts
+++ b/backend/src/modules/rest/auth/app/auth.app.service.ts
@@ -12,7 +12,7 @@ import configs from 'configs';
 import { IDecodedUser, IUserRoles } from 'interfaces/user';
 import { Secret } from 'jsonwebtoken';
 import { pick } from 'lodash';
-import { NOTIFICATION_TOPIC } from 'shared/pushNotification';
+import { NOTIFICATION_TOPIC, PushNotification } from 'shared/pushNotification';
 
 const login = async (
   body: IReq
@@ -54,7 +54,13 @@ const login = async (
   if (userExists) {
     const checkFcm = userExists.fcmTokens.filter(v => v.device !== fcmToken.device);
     if (checkFcm.length) {
-      //Todo: send notification to existing device
+      // send notification to existing device
+      PushNotification.send(checkFcm, {
+        type: 'app-update',
+        title: 'New device login!',
+        body: `Device Name: ${fcmToken.device}`,
+        data: { screenId: 'setting-modal' },
+      });
     }
 
     const fcmTokens = [...checkFcm, fcmToken];
diff --git a/backend/src/modules/rest/user/app/user.app.controller.ts b/backend/src/modules/rest/user/app/user.app.controller.ts
index 2acacb7..7165c92 100644
--- a/backend/src/modules/rest/user/app/user.app.controller.ts
+++ b/backend/src/modules/rest/user/app/user.app.controller.ts
@@ -3,6 +3,16 @@ import { sendResponse } from 'shared/sendResponse';
 import { AppUserService } from './user.app.service';
 
 // -------------------------------get-------------------------------
+const getUpdatedInfo = catchAsync(async (req, res) => {
+  const data = await AppUserService.getUpdatedInfo(req.user);
+
+  sendResponse(res, {
+    statusCode: 200,
+    success: true,
+    message: 'Retrieved user updated info successfully!!!',
+    data,
+  });
+});
 
 // ----------------------------------add----------------------------
 const refreshFcmToken = catchAsync(async (req, res) => {
@@ -58,6 +68,7 @@ const removeOtherUser = catchAsync(async (req, res) => {
 });
 
 export const AppUserController = {
+  getUpdatedInfo,
   refreshFcmToken,
   addSkill,
   updateUser,
diff --git a/backend/src/modules/rest/user/app/user.app.routes.ts b/backend/src/modules/rest/user/app/user.app.routes.ts
index f39d0e6..c7c2c38 100644
--- a/backend/src/modules/rest/user/app/user.app.routes.ts
+++ b/backend/src/modules/rest/user/app/user.app.routes.ts
@@ -6,6 +6,8 @@ import { AppUserController } from './user.app.controller';
 
 const router = express.Router();
 
+router.get('/updated-info', auth('user', 'userN'), AppUserController.getUpdatedInfo);
+
 router.post(
   '/refresh-fcm-token',
   auth('user', 'userN'),
@@ -32,7 +34,6 @@ router.delete(
   validateRequest(AppUserValidation.removeSkillZodSchema),
   AppUserController.removeSkill
 );
-
 router.delete(
   '/remove-other-user',
   auth('user', 'userN'),
diff --git a/backend/src/modules/rest/user/app/user.app.service.ts b/backend/src/modules/rest/user/app/user.app.service.ts
index 7eaba4a..29f9ba7 100644
--- a/backend/src/modules/rest/user/app/user.app.service.ts
+++ b/backend/src/modules/rest/user/app/user.app.service.ts
@@ -6,7 +6,49 @@ import { NOTIFICATION_TOPIC } from 'shared/pushNotification';
 import ApiError from 'errors/ApiError';
 
 // ---------------get----------------------
+const getUpdatedInfo = async (decodedUser: IDecodedUser) => {
+  const { _id } = decodedUser;
 
+  const userData = await AppUser.findById(_id)
+    .select('-_id fcmTokens fullName imageUrl coverUrl interests badges upVotes downVotes isBanned')
+    .lean();
+  // todo: remove this dummy data with proper data
+  const materialSections = [
+    {
+      title: 'English basic for beginner',
+      thumbnail:
+        'https://t3.ftcdn.net/jpg/03/70/42/66/360_F_370426690_Pejt9KxjWTHPklsKwripaxr0iA17zupF.jpg',
+    },
+    {
+      title: 'English for web developer',
+      thumbnail:
+        'https://www.fluentu.com/blog/english/wp-content/uploads/sites/4/2022/08/how-to-speak-english-fluently-1024x683.jpg',
+    },
+    {
+      title: 'Advance English grammar',
+      thumbnail:
+        'https://www.21kschool.com/blog/wp-content/uploads/2022/10/The-Importance-of-Grammar-in-Learning-the-English-Language.png',
+    },
+    {
+      title: 'English for daily conversation',
+      thumbnail:
+        'https://t3.ftcdn.net/jpg/03/70/42/66/360_F_370426690_Pejt9KxjWTHPklsKwripaxr0iA17zupF.jpg',
+    },
+    {
+      title: 'English for Business Communication',
+      thumbnail:
+        'https://www.fluentu.com/blog/english/wp-content/uploads/sites/4/2022/08/how-to-speak-english-fluently-1024x683.jpg',
+    },
+  ];
+
+  return {
+    userData: {
+      ...userData,
+      fcmTokens: userData?.fcmTokens.map(t => ({ token: t.token, device: t.device })),
+    },
+    materialSections,
+  };
+};
 // -------------------add------------------
 const refreshFcmToken = async (decodedUser: IDecodedUser, fcmToken: IFcmToken): Promise<void> => {
   const { _id } = decodedUser;
@@ -71,6 +113,7 @@ const removeOtherUser = async (decodedUser: IDecodedUser, device: string): Promi
 };
 
 export const AppUserService = {
+  getUpdatedInfo,
   refreshFcmToken,
   addSkill,
   updateUser,