Millions of Indians must link their mobile number to their Aadhaar card. This crucial step helps verify your identity, secure your accounts, and access important government and private services smoothly. Don't worry – linking is easier than you think! Here's your step-by-step guide for both online and offline methods. 
Your Simple Guide: How to Link Mobile Number to Aadhaar Online & Offline (2025)


Why Link Your Mobile to Aadhaar?

  1. Essential Verification: Banks, telecom companies, and government portals use your linked mobile for OTPs and identity checks.
  2. Access Services: Easily use digital services like banking, pensions, subsidies, and more.
  3. Enhanced Security: Linking adds a vital layer of protection against fraud for your Aadhaar-linked accounts.
  4. Mandatory Requirement: Many essential services now require a linked mobile number for Aadhaar authentication.

Method 1: Link Mobile to Aadhaar Online (Fast & Easy)

You can link your number yourself online if your current mobile number is already registered with UIDAI.
  1. Visit the Official Site: Go to the myAadhaar portal
  2. Log in: Enter your 12-digit Aadhaar number → Type the captcha code → Click "Send OTP". 
  3. Enter OTP: Type the OTP received on your currently registered mobile number. Click "Login".
  4. Find the Linking Option: On your dashboard, look for the section "Verify Email/Mobile Number". 
  5.  Update number: Under "Profile", click "Update Mobile Number" → Enter new number → Click "Send OTP"  
  6. Enter New Number: Carefully type the mobile number you want to link to your Aadhaar. Click "Send OTP".
  7. Verify with OTP: Enter the new OTP received on the new mobile number you just entered. Click "Verify OTP".
  8. Success!: You will see a confirmation message: "The Mobile Number is verified successfully with UIDAI". Your mobile number is now linked!
Important Note: This online method only verifies and updates your mobile number in UIDAI's records. It doesn't directly tell your telecom provider (like Airtel, Jio, Vi). Your telecom operator already has your number linked during SIM activation. This step ensures UIDAI has your correct, active number for authentication. 

Method 2: Link Mobile to Aadhaar Offline (Visit a Centre)

Use this method if your mobile number is not registered with UIDAI, or if you prefer face-to-face help.
  1. Locate a Centre: Find your nearest Aadhaar Seva Kendra (ASK) or authorized Common Service Centre (CSC). Use the UIDAI locator.
  2. Book an Appointment (Recommended): Schedule a visit online via the UIDAI website to save time. Walk-ins are often accepted but may involve waiting.
  3. Fill the Form: Get the Aadhaar Update/Correction Form. Select "Mobile Number" under the details to update. Fill in your Aadhaar Number and the new mobile number you want to link. Sign the form.
  4. Submit & Biometrics: Give the form to the executive. They will verify your identity using your fingerprints and iris scan.
  5. Pay the Fee: A small fee (currently Rs. 50) is required for demographic updates. Pay at the centre.
  6. Get Acknowledgement: You will receive an acknowledgement slip with an Update Request Number (URN). Track your update status online using this URN at.
  7. Processing: UIDAI will process your request. Once done, your new mobile number will be successfully linked to your Aadhaar.

Key Things to Remember:

  • Use Your Active Number: Only link a mobile number you actively use and control. You will need it for OTPs.
  • No Charge from UIDAI Online: UIDAI does not charge for online mobile verification/linking. Offline updates have a Rs. 50 fee.
  • Beware of Scams: UIDAI will never call, email, or SMS asking for your Aadhaar number, PIN, OTP, or password. Only use official websites.
  • Check Existing Link: Verify if your number is already linked by generating a Virtual ID (VID) on the myAadhaar portal – it requires an OTP on your registered number.
  • Keep it Updated: Inform UIDAI immediately if you change or lose your linked mobile number.

Troubleshooting Tips:

  • OTP Not Received? Check signal strength, wait a few minutes, or request again. Ensure your number isn't blocked.
  • Biometric Failure? Ensure fingers are clean and dry. If problems persist, visit a centre.
  • Update Rejected? Check the reason using your URN. You might need to resubmit with correct details or documents.

Get Linked Today!

Linking your mobile number to Aadhaar is a simple but vital task for secure and easy access to services in India. Choose the online method for speed if your number is already known to UIDAI, or visit a centre for direct assistance. Keeping your Aadhaar details updated ensures you stay connected to essential benefits and protections. Visit the official myAadhaar portal to start now!