Permanent Account Number or PAN is a means of identifying various taxpayers in the country. PAN is a 10-digit unique identification alphanumeric number (containing both alphabets and numbers) assigned to Indians, mostly to those who pay tax.
A formal document issued by an authorized official of a country to one of its citizens that is usually necessary for exit from and reentry into the country, that allows the citizen to travel in a foreign country in accordance with visa requirements, and that requests protection for the citizen while abroad.
A digital signature—a type of electronic signature—is a mathematical algorithm routinely used to validate the authenticity and integrity of a message (e.g., an email, a credit card transaction, or a digital document).
FASTag is a device that employs Radio Frequency Identification (RFID) technology for making toll payments directly while the vehicle is in motion. FASTag (RFID Tag) is affixed on the windscreen of the vehicle and enables a customer to make the toll payments directly from the account which is linked to FASTag.