From availing benefits of government schemes to opening bank accounts and getting benefits from many other services, the Aadhaar card has become very important. Aadhaar card is also being used for verification at many places. There is also an apprehension that the Aadhaar biometric can also be misused. Keeping this in mind, UIDAI has provided us the facility to lock or unlock the biometric present in the Aadhaar card.