Visit the nearest Aadhaar Enrolment/Update Centre or Aadhaar Seva Kendra
Carry your Aadhaar card or Aadhaar number and a valid mobile number
Fill out the Aadhaar update/correction form
Submit the form for mobile number update
Provide biometric authentication if required
Pay the applicable update fee
Collect the acknowledgement slip with the URN
Wait for the update to be processed
Check Aadhaar update status using the URN
Use the updated mobile number for Aadhaar OTP services