How to Change Mobile Number in UPI

Changing your mobile number in UPI is possible — and once you understand how UPI links to your bank account, the steps are logical. But it's not a single setting you update in an app. That distinction matters from the start.

Most people discover this after the fact. A new SIM card, a network port, a number discontinued after a long gap. The UPI app still opens. The old UPI ID is still visible. Everything looks intact — until a transaction fails, or an OTP (one-time password) goes to a number that no longer exists. That's usually the moment someone starts searching for how to fix it.

The good news: the process is straightforward. It just requires a specific sequence.

Once your UPI number is updated, you can make secure payments on the Shriram Finance website or app — from loan EMIs to fixed deposit bookings.

Why This Update Is More Involved Than It Sounds

UPI doesn't store your mobile number independently. Your UPI ID is linked to the mobile number registered with your bank account — not just with the app. Which means changing the number in your UPI app isn't enough on its own. The number needs to change at the bank level first.

Think of it this way. Your UPI app reads the SIM in your phone to verify your identity when you set it up. If the SIM has changed, the app can't verify you the same way. And if your bank account still has the old number on record, the new SIM won't match — which breaks the authentication chain.

This is why most guides that say "just go to app settings" leave people stuck halfway. The app reflects what the bank knows. Update the bank record first, and the app follows.

Step-by-Step: Updating Your Mobile Number Across Bank and UPI App

Step 1: Update Your Mobile Number with Your Bank

This is the foundational step. Everything else depends on it.

If your bank's mobile app supports KYC (Know Your Customer — the verification process banks use to confirm your identity) updates or contact detail changes, you may be able to update the number digitally. Log into your net banking or mobile banking account using your existing credentials, go to profile or account settings, and look for a mobile number update option. Some banks send an OTP to the new number to verify it; others require branch verification.

If the old number is completely inaccessible — disconnected, ported away, no longer reachable — the digital route typically won't work, because the bank will try to authenticate via the old number. In that case, visit your bank branch in person with your Aadhaar card or another valid identity document. A branch request for mobile number update is standard; most banks process it within one to three working days.

Step 2: Update the SIM in Your Phone

Once your bank has the new number on record, ensure the new SIM is active in the phone you use for UPI. UPI verification during setup reads the SIM directly — the number in the phone and the number registered with the bank need to match.

Step 3: Re-register on Your UPI App

With the bank updated and the new SIM in place, open your UPI app and go through the registration or re-setup process. The app will send a verification SMS from your new number to confirm it matches the bank record. Once that matches, your UPI profile links to the new number.

Your existing UPI ID — the handle you share with others for payments — typically stays the same. You don't lose your payment history or linked accounts. Only the authentication number changes.

Which Route Should You Take? A Quick Reference Table

Precautions Worth Taking Before and After

A few things are worth doing deliberately, rather than assuming they'll sort themselves out.

Before starting, confirm which mobile number is currently registered with your bank. Log into net banking or check your account statement header. It's surprisingly common for the number on the bank's record to differ from what the consumer expects — particularly if the account was opened years ago and the number was updated informally at some point.

After the update is complete, test the new number with a small UPI transaction. Don't assume it's working because the app accepted the re-registration. A ₹1 transfer to a trusted contact takes thirty seconds and confirms the full chain is functioning — new number, bank record, UPI authentication — before you depend on it for anything larger.

Also check whether you have any UPI autopay mandates — standing instructions for recurring payments like subscriptions or insurance premiums — set up under the old number. These may need to be re-authorised under the new number.

Frequently Asked Questions

Can I update my UPI registered mobile number directly through my UPI app?

Not independently. UPI apps reflect the mobile number registered with your bank account — they don't store it separately. The update has to happen at the bank level first, either through mobile banking, net banking, or a branch visit. Once the bank record is updated and the new SIM is in your phone, the UPI app re-registration follows.

How long does the change take to reflect in UPI?

After the bank updates the number — which takes anywhere from a few hours to three working days depending on the bank and the method used — the UPI app re-registration is usually immediate. The end-to-end timeline is largely determined by how quickly the bank processes the contact detail change.

What if my old number is completely unreachable?

Visit your bank branch in person. Carry a valid government-issued identity document — Aadhaar is the most widely accepted. The branch can update the mobile number without needing to authenticate via the old number. Attempting to do this online when the old number is unreachable will stall at the OTP step.

Will my UPI ID change when I update my number?

In most cases, no. Your UPI ID — the handle in the format name@bankname — is linked to your account, not exclusively to your number. But some UPI apps do generate a new ID on re-registration. Check after the process is complete and update your contacts if the ID has changed.

What precautions should I take during this process?

Confirm your bank's registered number before starting. Complete the bank update before attempting app re-registration — doing it in the wrong order creates authentication failures that look like errors but are just sequencing issues. After completing the update, run a small test transaction. And check any autopay mandates that were set up under the old number.