diff --git a/backend/.env b/backend/.env
new file mode 100644
index 00000000..6afc17b6
--- /dev/null
+++ b/backend/.env
@@ -0,0 +1,3 @@
+PORT=3000
+MONGODB_URI=mongodb://127.0.0.1:27017/auth-task
+JWT_SECRET=yourSuperSecretKey
diff --git a/backend/.gitignore b/backend/.gitignore
new file mode 100644
index 00000000..41d467a7
--- /dev/null
+++ b/backend/.gitignore
@@ -0,0 +1,11 @@
+node_modules/
+
+.env
+
+.vscode/
+
+package-lock.json
+
+*.log
+
+.DS_Store
diff --git a/backend/config/db.config.js b/backend/config/db.config.js
new file mode 100644
index 00000000..cca26f53
--- /dev/null
+++ b/backend/config/db.config.js
@@ -0,0 +1,13 @@
+const mongoose = require('mongoose');
+
+const connectDB = async () => {
+  try {
+    await mongoose.connect(process.env.MONGODB_URI); 
+    console.log('MongoDB connected');
+  } catch (error) {
+    console.error('MongoDB connection failed:', error.message);
+    process.exit(1);
+  }
+};
+
+module.exports = connectDB;
\ No newline at end of file
diff --git a/backend/controllers/auth.controller.js b/backend/controllers/auth.controller.js
new file mode 100644
index 00000000..5376fc76
--- /dev/null
+++ b/backend/controllers/auth.controller.js
@@ -0,0 +1,90 @@
+const jwt = require('jsonwebtoken');
+const User = require('../models/user.model');
+
+// Register
+exports.register = async (req, res) => {
+  const { fullName, email, password } = req.body;
+
+  try {
+    const existingUser = await User.findOne({ email });
+    if (existingUser) return res.status(400).json({ error: 'Email already registered' });
+
+    const newUser = new User({ fullName, email, password });
+    await newUser.save();
+    res.status(201).json({ message: 'User registered successfully' });
+  } catch (err) {
+    res.status(500).json({ error: 'Server error during registration' });
+  }
+};
+
+// Login
+exports.login = async (req, res) => {
+  const { email, password } = req.body;
+
+  try {
+    const user = await User.findOne({ email });
+    if (!user || user.password !== password) {
+      return res.status(401).json({ error: 'Invalid email or password' });
+    }
+
+    const payload = { userId: user._id };
+    const token = jwt.sign(payload, process.env.JWT_SECRET, { expiresIn: '1h' });
+
+    res.status(200).json({
+      message: 'Login successful',
+      token,
+      expiresIn: 3600, // 1 hour in seconds 
+      user: {
+        fullName: user.fullName,
+        email: user.email,
+        isEmailVerified: user.isEmailVerified
+      }
+    });
+  } catch (err) {
+    res.status(500).json({ error: 'Server error during login' });
+  }
+};
+
+
+// reset password token
+exports.resetPasswordRequest = async (req, res) => {
+  const { email } = req.body;
+
+  try {
+    const user = await User.findOne({ email });
+    if (!user) return res.status(404).json({ error: 'User not found' });
+
+    const resetToken = jwt.sign(
+      { userId: user._id },
+      process.env.JWT_SECRET,
+      { expiresIn: '15m' } 
+    );
+
+    res.json({ message: 'Reset token generated', resetToken });
+  } catch (err) {
+    res.status(500).json({ error: 'Server error' });
+  }
+};
+
+// Set new password
+exports.setNewPassword = async (req, res) => {
+  const { token, newPassword } = req.body;
+
+  try {
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+    const user = await User.findById(decoded.userId);
+    if (!user) return res.status(404).json({ error: 'User not found' });
+
+    user.password = newPassword;
+    await user.save();
+
+    res.json({ message: 'Password has been updated' });
+  } catch (err) {
+    res.status(400).json({ error: 'Invalid or expired token' });
+  }
+};
+
+// Logout
+exports.logout = async (req, res) => {
+  res.status(200).json({ message: 'Logged out successfully' });
+};
\ No newline at end of file
diff --git a/backend/middleware/auth.middleware.js b/backend/middleware/auth.middleware.js
new file mode 100644
index 00000000..0b127bc3
--- /dev/null
+++ b/backend/middleware/auth.middleware.js
@@ -0,0 +1,32 @@
+const jwt = require('jsonwebtoken');
+
+module.exports = (req, res, next) => {
+  const authHeader = req.headers.authorization;
+
+
+  if (!authHeader || !authHeader.startsWith('Bearer ')) {
+    return res.status(401).json({ error: 'Authorization token missing' });
+  }
+
+  const token = authHeader.split(' ')[1];
+
+  try {
+    // Verify token
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+    req.userId = decoded.userId; 
+    next(); 
+  } catch (error) {
+    // Handle expired token
+    if (error.name === 'TokenExpiredError') {
+      return res.status(401).json({ error: 'Token has expired. Please log in again.' });
+    }
+
+    // Handle invalid token
+    if (error.name === 'JsonWebTokenError') {
+      return res.status(401).json({ error: 'Invalid token. Authentication failed.' });
+    }
+
+    // Generic error fallback
+    return res.status(401).json({ error: 'Unauthorized access' });
+  }
+};
diff --git a/backend/models/user.model.js b/backend/models/user.model.js
new file mode 100644
index 00000000..77af6ee3
--- /dev/null
+++ b/backend/models/user.model.js
@@ -0,0 +1,26 @@
+const mongoose = require('mongoose');
+
+const userSchema = new mongoose.Schema({
+  fullName: {
+    type: String,
+    required: true,
+    trim: true
+  },
+  email: {
+    type: String,
+    required: true,
+    unique: true,
+    lowercase: true,
+    trim: true
+  },
+  password: {
+    type: String,
+    required: true
+    },
+  isEmailVerified: {
+    type: Boolean,
+    default: false
+  }
+}, { timestamps: true });
+
+module.exports = mongoose.model('User', userSchema);
diff --git a/backend/package-lock.json b/backend/package-lock.json
new file mode 100644
index 00000000..738344dc
--- /dev/null
+++ b/backend/package-lock.json
@@ -0,0 +1,1559 @@
+{
+  "name": "internship",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "internship",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "bcrypt": "^6.0.0",
+        "dotenv": "^16.6.0",
+        "express": "^5.1.0",
+        "express-validator": "^7.2.1",
+        "jsonwebtoken": "^9.0.2",
+        "mongoose": "^8.16.1"
+      },
+      "devDependencies": {
+        "nodemon": "^3.1.10"
+      }
+    },
+    "node_modules/@mongodb-js/saslprep": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/@mongodb-js/saslprep/-/saslprep-1.3.0.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "sparse-bitfield": "^3.0.3"
+      }
+    },
+    "node_modules/@types/webidl-conversions": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/@types/whatwg-url": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-11.0.5.tgz",
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+        "tr46": "^5.1.0",
+        "webidl-conversions": "^7.0.0"
+      },
+      "engines": {
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+      }
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+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
diff --git a/backend/package.json b/backend/package.json
new file mode 100644
index 00000000..dce72e88
--- /dev/null
+++ b/backend/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "internship",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "description": "",
+  "dependencies": {
+    "bcrypt": "^6.0.0",
+    "dotenv": "^16.6.0",
+    "express": "^5.1.0",
+    "express-validator": "^7.2.1",
+    "jsonwebtoken": "^9.0.2",
+    "mongoose": "^8.16.1"
+  },
+  "devDependencies": {
+    "nodemon": "^3.1.10"
+  }
+}
diff --git a/backend/routes/auth.routes.js b/backend/routes/auth.routes.js
new file mode 100644
index 00000000..b3833651
--- /dev/null
+++ b/backend/routes/auth.routes.js
@@ -0,0 +1,77 @@
+const express = require('express');
+const {
+  register,
+  login,
+  resetPasswordRequest,
+  setNewPassword,
+  logout
+} = require('../controllers/auth.controller');
+const { check, validationResult } = require('express-validator');
+
+const router = express.Router();
+
+// Register Route
+router.post(
+  '/register',
+  [
+    check('fullName', 'Full name is required').notEmpty(),
+    check('email', 'Valid email is required').isEmail(),
+    check('password', 'Password must be at least 6 characters').isLength({ min: 6 }),
+  ],
+  (req, res, next) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) return res.status(400).json({ errors: errors.array() });
+    next();
+  },
+  register
+);
+
+// Login Route
+router.post(
+  '/login',
+  [
+    check('email', 'Valid email is required').isEmail(),
+    check('password', 'Password is required').notEmpty(),
+  ],
+  (req, res, next) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) return res.status(400).json({ errors: errors.array() });
+    next();
+  },
+  login
+);
+ 
+
+//Reset Password Route
+router.post(
+  '/reset-password',
+  [
+    check('email', 'Valid email is required').isEmail(),
+  ],
+  (req, res, next) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) return res.status(400).json({ errors: errors.array() });
+    next();
+  },
+  resetPasswordRequest
+);
+
+// Set New Password Route
+router.post(
+  '/new-password',
+  [
+    check('token', 'Reset token is required').notEmpty(),
+    check('newPassword', 'New password must be at least 6 characters').isLength({ min: 6 }),
+  ],
+  (req, res, next) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) return res.status(400).json({ errors: errors.array() });
+    next();
+  },
+  setNewPassword
+);
+
+// Logout Route
+router.post('/logout', logout);
+
+module.exports = router;
diff --git a/backend/server.js b/backend/server.js
new file mode 100644
index 00000000..9bf855e5
--- /dev/null
+++ b/backend/server.js
@@ -0,0 +1,34 @@
+require('dotenv').config();
+const express = require('express');
+const connectDB = require('./config/db.config');
+const authRoutes = require('./routes/auth.routes');
+const authMiddleware = require('./middleware/auth.middleware');
+const User = require('./models/user.model');
+
+const app = express();
+app.use(express.json());
+
+// Connect to DB
+connectDB();
+
+app.use('/api/auth', authRoutes);
+app.get('/api/user/profile', authMiddleware, async (req, res) => {
+  try {
+    const user = await User.findById(req.userId).select('-password');
+    if (!user) return res.status(404).json({ error: 'User not found' });
+
+    res.status(200).json({
+      message: 'Profile fetched successfully',
+      user: {
+        fullName: user.fullName,
+        email: user.email,
+        isEmailVerified: user.isEmailVerified
+      }
+    });
+  } catch (error) {
+    res.status(500).json({ error: 'Server error while fetching profile' });
+  }
+});
+
+const PORT = process.env.PORT || 3000;
+app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
\ No newline at end of file