How to Link Aadhaar with Mobile Number in 2025

With the growing importance of Aadhaar for various services, it is essential to keep your details updated, especially your mobile number. Linking your mobile number to your Aadhaar is crucial for accessing Aadhaar-based services, using the mAadhaar app, and managing updates through the Self Service Update Portal. It is therefore essential to know the steps to link your mobile number with your Aadhaar card, ensuring that you're always connected to your Aadhaar-linked services.

Here’s how you can link your Aadhaar card to a mobile number without having to go to the Aadhaar service centre:

1. To link a mobile number to your Aadhaar card online, go to the Indian Postal Service website
   

2. Input your basic details such as your name, address, mobile number, and email address
   

3. Click on ‘PPB- Aadhaar Service’ from the drop-down menu
   

4. Choose – UIDAI-Mobile/Email to Aadhaar linking/update
   

5. Fill out all the fields and select the options of your choice
   

6. Click on ‘Request OTP’
   

7. The screen will redirect to one requesting the OTP received on your mobile number
   

8. Select ‘Confirm Service Request’
   

9. You will be sent a Reference Number. This can be used to track your application status
   

10. Once your application is submitted, the request will be sent to the post office near you
    

11. An officer will conduct the verification process by visiting your address
    

12. Upon completion of mobile phone linking or updation, you will be charged a fee for the service

Here’s how you can link your phone number to your Aadhaar card through an offline mode. Follow these steps closely:

1. Find out where your nearest Aadhaar enrolment centre is located. You can find it here - appointments.uidai.gov.in
   

2. Enter your mobile number in the Aadhaar enrolment form if you are new to the UIDAI’s Aadhaar ecosystem OR fill the Aadhaar correction form if you need to update your existing mobile number
   

3. Click on ‘Submit’
   

4. Record your biometrics like iris and fingerprints
   

5. Make the payment
   

6. Receive an acknowledgement slip from the Aadhaar executive
   

7. Use the update request number (URN) to check on the status of your Aadhaar update
   

You need not get another Aadhaar card or Aadhaar number after updating your mobile number. Once the mobile number is linked to your Aadhaar, you will start receiving OTPs for all the Aadhaar-related services

You can also use the interactive voice response system (IVR) to link your Aadhaar number with mobile number. 

Here’s how you can do it:

• Dial the toll-free number 14546
  

• Choose whether your residential status is Indian or NRI
  

• Re-verify your Aadhaar by pressing 1
  

• Input your Aadhaar number
  

• Press 1 to confirm
  

• Receive an OTP on your registered mobile number
  

• Allow the IVR operator to get your name, birthdate and photo from UIDAI
  

• The IVR will tell you the last 4 digits of your mobile number
  

• If the number is correct, enter the OTP
  

• Press 1 to complete verification

At an Aadhaar Seva Kendra (ASK), the process of linking your mobile number to your Aadhaar is efficient and streamlined. 

Here’s the step-by-step process you need to follow:

• Walk-in or Book Appointment Online

You can either walk in directly or book an appointment online via the UIDAI portal before visiting the Aadhaar Seva Kendra. Booking an appointment helps you save time.

• Contact Help Desk or Show Appointment Slip

Upon arrival, approach the Help Desk or show your appointment slip to the staff for guidance and to begin the process.

• Go to Token Desk

Proceed to the Token Desk where you will receive a token. This helps manage the flow of individuals and ensures that you are served in the order of your arrival.

• Move to Verifier

After receiving the token, you will be directed to the Verifier station where your details will be verified, and the linking process will start.

• Payment at Cash Counter

Make the necessary payment for updating your mobile number. The fee for this process is ₹75 if done separately from a biometric update.

• Update/Enrolment at Operator Desk

Finally, you will move to the Operator Desk where your details will be updated, and your mobile number will be linked to your Aadhaar.

This process ensures a smooth experience for individuals who wish to update their details at the Aadhaar Seva Kendra. You will receive an acknowledgment slip, and your update will be processed promptly.

Note: The last token for the day is given at 5:30 pm, so make sure to arrive before that time to ensure service.

If you are still using your old outdated mobile number on your Aadhaar card, you will have to update it to your new number to receive OTPs for all major Aadhaar-related services. 

Here’s how you can update your new mobile number on your Aadhaar:

• Go to the nearest Aadhaar enrolment centre
  

• Complete the Aadhaar enrolment form with updated details
  

• State your new mobile number in the form
  

• Submit your form to the Aadhaar enrolment executive
  

• Record your biometric details for re-verification
  

• Pay the executive a certain fee for their services

You don't have to provide other documents for this simple updation process.

Here are some advantages of linking your mobile number with your Aadhaar that you should know about:

• You can access various Aadhaar-related services like e-KYC, identity verification, direct transfer of subsidy benefits to your bank account, etc.
  

• You get to use mAadhaar app to access Aadhaar-related services which is possible only if your number and Aadhaar are linked
  

• You can easily update Aadhaar details through the Self Service Update Portal (SSUP) with the help of the linked mobile number
  

• You can download your e-Aadhaar by entering the OTP sent to your registered mobile number

The process to link a mobile number to an Aadhaar card online is quite simple and thus, you are not required to submit multiple documents. The only document you require is a self-attested copy of your Aadhaar card.

Here’s how you can book an appointment to link your mobile number to your Aadhaar card online through UIDAI run Aadhaar Seva Kendra:

1. Visit https://appointments.uidai.gov.in/bookappointment.aspx
   

2. Choose your city or location from the dropdown menu under ‘Select City/Location’
   

3. Click on ‘Proceed To Book Appointment’
   

4. Click on ‘Aadhaar Update’
   

5. Enter your mobile number and captcha
   

6. Enter the OTP sent on your mobile
   

7. Once the number is successfully authenticated, fill out the required details and submit the form
   

8. Choose the date and time of your appointment on the ‘Manage Appointment’ tab

Linking your mobile number to your Aadhaar can be done at an Enrolment or Update Centre with specific fees depending on the type of update you require. 

The official charges are as follows:

Demographic Update

If you're updating your mobile number along with other demographic details such as your name, gender, date of birth, or address, the fee is:

• Free if done at the same time as a biometric update
  

• ₹75 if done separately from a biometric update

Payment Methods

Payment for the update can be made at the Cash Counter at the Aadhaar Seva Kendra (ASK) or online when booking your appointment through the UIDAI website (this option will be launched soon).

Please note, these fees are subject to change, so it’s advisable to check the official UIDAI website for the most up-to-date information before proceeding.