Visit your nearest ICICI Bank branch with a valid photo ID and account details
Fill out the mobile number change request form
Submit the completed form to the bank official
Complete any required verification, such as OTP or signature confirmation
Wait for the bank to update your registered mobile number
Use ICICI Internet Banking or iMobile app if the bank allows mobile number update through online request
Contact ICICI Bank customer care for guidance on the available update process
Ensure your new mobile number is active and accessible for verification messages