Visit the Income Tax e-Filing portal
Click on “Link Aadhaar Status”
Enter your PAN number
Enter your Aadhaar number
Click on “View Link Aadhaar Status”
Check the status shown on the screen
If linked, it will show that Aadhaar is linked with PAN
If not linked, it will show that linking is pending or not found
You can also check by sending an SMS in the required format to the official number
You can also verify through the UIDAI or Income Tax portal services if available