Visit the nearest Aadhaar Enrolment/Update Centre
Carry your Aadhaar card or Aadhaar number
Carry a valid identity proof if required
Fill out the Aadhaar Update/Correction form
Select the mobile number update option
Enter the new mobile number on the form
Submit the form at the centre
Complete biometric verification using fingerprint or iris scan
Pay the applicable update fee
Collect the acknowledgement slip with the Update Request Number
Wait for the update to be processed
Check the update status on the UIDAI website using the URN
Use the new mobile number for Aadhaar OTP services after the update is completed