How to Link Your Mobile Number with Aadhaar Online & Offline Methods

Linking your mobile number with Aadhaar is essential if you want to access Aadhaar-based services like e-KYC and Video KYC for bank accounts, OTP verification, filing taxes, e-Aadhaar downloads, and biometric authentication. Without a registered mobile number, you can't use any online Aadhaar services.

Whether you're updating an old number or registering a new one, this guide explains how to link your mobile number with Aadhaar — using both online and offline methods. Let’s dive in!

Why Linking Aadhaar with Your Mobile Number is Important

• Receive OTPs for Aadhaar authentication
• Access e-Aadhaar and Aadhaar-based KYC services
• Use Aadhaar SMS services (like biometric lock/unlock)
• Secure your digital identity
• Enable Aadhaar-linked services for banking, PAN, telecom, DigiLocker, etc.
• Open Savings Account online hassle-free with Video KYC

When Should You Update Your Mobile Number in Aadhaar?

You should consider linking or updating your Aadhaar mobile number in the following situations:

• You’ve changed your mobile number
• Your old number has been deactivated by your telecom provider
• You’re currently using someone else’s number for Aadhaar OTPs
• You want to register a mobile number for the first time (for children or yourself)

How to Link Aadhaar with Mobile Number Online (via India Post)

While UIDAI doesn’t offer a direct online method yet, India Post provides a convenient doorstep service that you can book online.

Steps to Link Mobile Number with Aadhaar via India Post:

1. Visit: ccc.cept.gov.in

2. Choose ‘UIDAI-Mobile/Email Update’ service

3. Fill in your name, Aadhaar number, mobile number, Address and PIN code

4. Submit OTP received on your mobile

5. Get a Service Request Number to track your application

6. An officer will visit your home with a biometric device to verify your identity

7. On successful authentication, your mobile number gets linked

The fee is approximately ₹50 and the processing time is 7–14 working days.

How to Link Aadhaar with Mobile Number Offline (via Aadhaar Seva Kendra)

For most users, especially those without access to doorstep service, visiting an Aadhaar Seva Kendra is the preferred method.

Steps to Link Mobile Number at Aadhaar Centre:

1. Locate a nearby Aadhaar Seva Kendra at appointments.uidai.gov.in

2. Fill the Aadhaar Update/Correction Form

3. Provide Aadhaar number, valid proof of identity (PAN, voter ID, etc.) and new mobile number to be linked

4. Undergo biometric authentication (fingerprint or iris scan)

5. Pay the update fee and collect your URN (Update Request Number)

6. Track status via UIDAI portal or call 1947

The fee is approximately ₹50 and the processing time is 3–10 working days (can take up to 30 days).

Linking Mobile Number During Aadhaar Enrolment

If you’re applying for Aadhaar for the first time — for yourself or your child — you can register your mobile number during enrolment. This ensures the number is linked from Day 1, and there's no need for a separate update request.

You can also link or change the number during child Aadhaar updates at ages 5 and 15, when biometrics need to be re-submitted.

After Your Mobile Number Is Linked

• You will start receiving UIDAI OTPs on the linked number
• You can use Aadhaar-based services like e-KYC, DigiLocker, and e-Aadhaar
• You can lock/unlock biometrics or retrieve Aadhaar by SMS
• Remember, only one mobile number can be linked at a time

Tools to Check or Manage Your Aadhaar Linking

• mAadhaar App: Check partial mobile number, download e-Aadhaar, and book centre appointments
• UIDAI Helpline (1947): For queries, complaint registration, or tracking status
• UIDAI Portal: uidai.gov.in for updates and tracking with URN

Disclaimer: Please check with your local Aadhar enrolment centre or visit official websites for more information.