You can easily change mobile number in bank account online using Insta Services.
Generally, it might take anywhere from a few minutes to 1-2 business days, depending on how you choose to change bank account phone number.
As long as you have an active Indian mobile number registered with the bank, you can easily update your mobile number.
After you submit your request through Insta Services, you can check the status by using the service request number.
HDFC Bank doesn’t charge you for updating your mobile number.
Update Registered Mobile Number Now!