Check your bank passbook or account statement for the mobile number registered with the account
Log in to your bank’s mobile app or internet banking and view your profile or contact details
Visit your nearest bank branch with valid ID and ask the bank staff to confirm the registered number
Call the bank’s customer care from your registered number and verify the linked mobile number
Check SMS alerts from the bank, as they are usually sent to the registered mobile number
Review any account opening documents or KYC forms where the mobile number may be listed
Use the bank’s ATM or self-service kiosk if it shows masked contact details
If needed, update or change the linked number through the bank branch or official online banking channel