The most accurate way to check if a PAN card is valid is to use the official Income Tax Department's 'Verify Your PAN' service on their e-Filing portal (incometax.gov.in).
- Go to the official e-Filing portal.
- Click on 'Verify Your PAN'.
- Enter the PAN, Full Name, Date of Birth, and your mobile number.
- Validate the details using the OTP received to confirm the PAN's active status and correctness.
For a basic verification, ensure the PAN number adheres to the mandatory alphanumeric structure: five uppercase letters, followed by four digits, and ending with one uppercase letter.