Application to change mobile number in bank account

Use this to ask the bank to register a new mobile number for your account, so that SMS alerts and OTPs come to the new number.

Tap a yellow blank and type your own details. What you type stays in your browser only.

To The Branch Manager, [Bank Name], [Branch Name] Date: [Date] Subject: Request to update my registered mobile number Respected Sir/Madam, I hold a savings account, number [Account Number], in your branch. I want to change the mobile number registered with this account. Old mobile number: [Old Mobile Number] New mobile number: [New Mobile Number] Reason: [Reason, for example my old number is no longer in use]. Kindly register the new number for SMS alerts, OTPs and all banking services. Thanking you, Yours faithfully, [Your Name] Account No.: [Account Number] Signature: ____________

When to use this letter

Use this when you have a new mobile number, or when the number in the bank's records is no longer with you. The registered number receives your OTPs and alerts, so banks treat a change carefully and usually want the account holder present.

Before you send it

Go to the branch yourself with your original identity proof. Banks do not change a mobile number on a letter sent through someone else.
Banks usually have their own one-page form for this. Ask for it; use this letter if they do not.
After the change, make a small test: check that an SMS alert arrives on the new number.
Change the number linked to UPI apps too. They do not update by themselves.

What to attach

Copy of an identity proof (Aadhaar or PAN card), with the original to show
Passbook

How to send or submit it

Go to the branch yourself with original identity proof and the passbook, and fill in the bank's own form if it has one. Some banks also allow the change at an ATM or through net banking when you still have the old number or the debit card. Ask what your bank offers.

Mistakes that get it sent back

Sent through another person.
The signature does not match.
The new number is written with a wrong digit. Write it clearly, digit by digit, and read it back.
Only one holder of a joint account applied, where the bank's rules need all.

This is a general format, written by us, to save you time. If the bank has its own printed form, use that form. Last checked: 11 November 2026.

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