how to unlock pan card

To "unlock" your PAN card, you are likely referring to one of two things. To open the password-protected e-PAN PDF, the password is your date of birth in the DDMMYYYY format (or the date of incorporation for a company). If your PAN card has been deactivated by the Income Tax Department—for instance, due to not linking with Aadhaar—you must check the status on the Income Tax e-filing website and follow the steps to link them, or submit a formal request along with documents to your jurisdictional Assessing Officer for reactivation.