Visit the Income Tax e-Filing portal: https://www.incometax.gov.in/
Click on “Link Aadhaar” on the homepage
Enter your PAN number
Enter your Aadhaar number
Enter your name exactly as per Aadhaar
Enter the mobile number linked with Aadhaar
Click on “I validate my Aadhaar details”
Enter the OTP received on your mobile number
Submit the request
Check the status of Aadhaar-PAN linking on the portal
If needed, link Aadhaar through SMS by sending UIDPAN
Ensure your PAN and Aadhaar details match before linking