SIM Binding Rule: Will Your Bank App Stop Working?

The government wants to tie your banking apps to your active SIM card to fight fraud. But a new survey says most users and small businesses fear being locked out. Here is what this could mean for your money access.

Here's what happened: India's Department of Telecommunications issued a directive in November 2025 proposing SIM binding to link banking apps to a registered SIM card as an anti-fraud measure.. A survey of over 2,000 consumers and 353 small businesses found that the vast majority expect SIM binding to cause inconvenience, with 82% of businesses fearing operational disruption.. Critics note that neither the government nor researchers have yet measured what proportion of actual financial fraud involves accounts where the original SIM is already inactive or removed..

What you should do: Check whether your primary bank account, UPI ID, and loan OTPs are all linked to one mobile number — if yes, consider registering a backup number with your bank now.. If you run a small business with UPI collections tied to a single SIM, contact your bank to understand whether you can add a secondary registered number to your account.. Monitor RBI and DoT announcements on the SIM binding rollout timeline — if implemented, you will need to complete a re-verification step before your banking apps work again..

Registering an alternate mobile number with your bank as a secondary contact today takes under 5 minutes at a branch or via net banking — and protects you from any forced-logout event.

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