Visit your state’s official transport department or Parivahan website
Log in using your driving licence details or registered account
Select the option for updating contact details or mobile number
Enter your new mobile number
Verify the number using the OTP sent to your new mobile number
Submit the request
Save or note the acknowledgement number
If required, visit the local RTO with your driving licence and identity proof
Complete any required form for updating the mobile number
Pay the applicable fee, if any
Check the updated details on the portal after processing