Visit your bank branch or log in to your bank’s mobile app or internet banking
Go to the profile, contact details, or personal information section
Select the option to update or link your mobile number
Enter your phone number carefully
Verify the number using the OTP or verification code sent to your phone
Submit the request and confirm the changes
If required, fill out a mobile number update form at the branch
Provide your bank account details and valid ID proof if asked
Wait for the bank to process and activate the linked number
Check your account or receive a confirmation message to ensure the number is linked