Here’s a simple guide to unlock your Aadhaar biometric data for authentication purposes:

  • Begin by visiting the official website of the Unique Identification Authority of India (UIDAI). You can do this by entering “” in your web browser.


  • On the UIDAI website’s homepage, locate the “Aadhaar Services” section. Click on it to reveal a dropdown menu offering various options.
  • From the dropdown menu, select the “Lock/Unlock Biometrics” option. This selection will direct you to the “Lock/Unlock Biometrics” page.
  • On the “Lock/Unlock Biometrics” page, enter your 12-digit Aadhaar number accurately.


  • Beneath the Aadhaar number field, you’ll find a security code. Input the characters displayed in the image or the provided text into the security code box.
  • Click on the “Send OTP” button. A One-Time Password (OTP) will be sent to your registered mobile number.
  • Check your mobile for the OTP and enter it into the designated field on the webpage.
  • After entering the OTP, click “Submit” or “Unlock” to commence the process of unlocking your biometrics.


  • If you’ve correctly followed the steps and entered the accurate OTP, your Aadhaar biometrics will be unlocked. A confirmation message will appear on the website.
  • You might also receive an SMS on your registered mobile number confirming the successful unlocking of your biometric data.


  • Your Aadhaar biometrics are now unlocked and ready for authentication purposes.