You can add or update your mobile number on your PAN card online through the official portals like Protean (formerly NSDL) or UTIITSL by initiating a PAN data correction request.
- Visit the official portal and select the 'Changes or Correction in existing PAN Data' option.
- Fill out the online application form with your existing PAN details.
- Navigate to the 'Contact and other details' section and enter your new mobile number.
- Choose the Aadhaar-based e-KYC option for a paperless submission.
- Verify the changes using the OTP sent to your Aadhaar-registered number and submit the form with the required fee.
This process ensures your new mobile number is updated in the Income Tax Department's database.