Just follow the bellow mention procedure to Update the Mobile Number.

Step1. First visit the UIDAI official website & click on Update Aadhaar details.

Step2. Enter 12-digit Aadhar number & click on Send OTP button.

Step3. An OTP will sent to registered mobile number.

Step4. Enter an OTP in specified fields & click Login button.

Step5. It will redirect to Data update Request page. Here you can enter new mobile number.

Step6. On next page web portal display the new mobile number entered by the user.

Step7. The Data Update Request portal sends OTP to mobile number. Enter OTP & click Submit button.

Step8. After successful submission, the web portal generates the URN. The URN used to track the status of Aadhaar.