How can Aadhaar number holder Lock UID?

For Locking UID, Aadhaar number holder should have 16 digit VID number and it's a pre-requisite for locking. If Aadhaar number holder don't have VID can generate via SMS Service or UIDAI website (www.myaadhaar.uidai.gov.in).

SMS Service. GVID space last 4 or 8 digit of UID. SMS to 1947. Ex- GVID 1234.

Aadhaar number holder may visit UIDAI website (https://resident.uidai.gov.in/aadhaar-lockunlock), Under My Aadhaar tab, Click on Aadhaar Lock & Unlock services. Select UID Lock Radio Button and enter UID Number, Full Name, and Pin Code as in latest details and enter Security code. Click on Send OTP or select TOTP and click on submit. Your UID will be locked successfully.