TL;DR: Both the official mAadhaar app and the UIDAI website offer a biometric lock/unlock feature under Aadhaar services.
How to Lock Your Aadhaar Biometrics — a clear, step-by-step guide to what to do and how long it takes.
Step 1: Open the mAadhaar app or visit uidai.gov.in
Both the official mAadhaar app and the UIDAI website offer a biometric lock/unlock feature under Aadhaar services.
Step 2: Verify your identity with your Aadhaar number and OTP
You'll need to enter your Aadhaar number and verify with an OTP sent to your registered mobile number to access the lock feature.
Step 3: Enable biometric lock
Once verified, select the option to lock your biometrics — this prevents your fingerprint or iris data from being used for authentication until you unlock it again.
Step 4: Unlock temporarily when you need biometric authentication
When you genuinely need to use Aadhaar biometric authentication — for example at a bank or government office — you can unlock it temporarily through the same app or portal, then re-lock it afterward.
If this looks similar to something else you've seen, it's worth reading How to Recover a Hacked WhatsApp Account in India.
This pattern shows up elsewhere too — see How to Recover Money Lost to a UPI Scam.
Frequently Asked Questions
Step 1: Open the mAadhaar app or visit uidai.gov.in
Both the official mAadhaar app and the UIDAI website offer a biometric lock/unlock feature under Aadhaar services.
Step 2: Verify your identity with your Aadhaar number and OTP
You'll need to enter your Aadhaar number and verify with an OTP sent to your registered mobile number to access the lock feature.
Step 3: Enable biometric lock
Once verified, select the option to lock your biometrics — this prevents your fingerprint or iris data from being used for authentication until you unlock it again.
Step 4: Unlock temporarily when you need biometric authentication
When you genuinely need to use Aadhaar biometric authentication — for example at a bank or government office — you can unlock it temporarily through the same app or portal, then re-lock it afterward.