how to change mobile number in atm

Changing your registered mobile number generally cannot be done directly at an ATM machine, as this is a sensitive security measure. Most banks require a more secure process to update contact details and prevent fraud. To successfully change your mobile number, you must contact your bank. Common methods for updating your number include:

• Submitting a duly filled form at your bank's nearest branch.
• Using your bank's official Net Banking portal to submit an online request.

Some banks may use the ATM only to generate a temporary reference number that must be taken to the branch or used for online authentication.