Aadhaar card linking with PAN (Permanent Account Number) card is a process mandated by the Indian government. As per the Income Tax Act, it is mandatory for individuals to link their Aadhaar and PAN card to file income tax returns. To link your Aadhaar card with PAN, you can follow the steps below: Visit the Income Tax e-filing website: https://www.incometaxindiaefiling.gov.in/home Click on the "Link Aadhaar" option on the homepage. Enter your PAN, Aadhaar number, name as per Aadhaar, and Captcha code. Click on the "Link Aadhaar" button. Your Aadhaar and PAN will be linked if the details entered by you match with the details in the Aadhaar database. Alternatively, you can also link your Aadhaar card with PAN by sending an SMS to 567678 or 56161 in the format: UIDPAN<SPACE><12 digit Aadhaar number><SPACE><10 digit PAN number>. It is important to link your Aadhaar and PAN to avoid any penalties or consequences while filing your income tax retur