Worried about the misuse of your Aadhaar Card? You can easily check where all your Aadhaar Card biometric or OTP authentication has been used in the last 6 months. Unique Identification Authority of India (UIDAI), the nodal body for issuing Aadhaar Card, provides you with an option to check the usage of Aadhaar Card biometric or OTP authentication on its portal. All you need to do is use UIDAI's 'Aadhaar Authentication History' service on This service will help you learn all the details pertaining to usage of your Aadhaar Card based biometric, OTP or demographic authentication for availing various services in the last 6 months. How to check Aadhaar Card Authentication History on UIDAI 1. You need to visit the portal of UIDAI - Once you go to the page, you will find Aadhaar Online Services, Aadhaar Update, Aadhaar Services. 2. You need to go to Aadhaar Services section and select Aadhaar Authentication History. Once you select "Aadhaar Authentication History", you need to enter your 12-digit Aadhaar Card number. After that, you need to enter the "Security Code" which will be displayed in captcha mode. 3. Once that is done, you need to click on Generate OTP. You will receive an OTP on your contact number which is registered with UIDAI or linked with your Aadhaar Card number. Watch video \ufeff 4. Once you will click on Generate OTP, a new window will open displaying "Aadhaar Notification Setting". You need to select the Authentication type. You will get options All, demographic, biometric, OTP, demographic and biometric, biometric and OTP, demographic and OTP. 5. After that, you need to select Data range - "From date" to "To Date". Subsequently, you need to fill "Number of Records". You must know that the maximum permissible limit is 50 records. After that, you need to enter the OTP that you received and click to 'Submit'. Finally, after following the process, all details regarding the usage of your Aadhaar Card details will be displayed in a window.