Check whether a PAN is structurally valid — five letters, four digits, a letter, with the correct entity-type character.
A PAN is AAAAA9999A — five letters, four digits, one letter. The fourth character encodes the holder type: P for an individual, C for a company, H for a HUF, F for a firm. This checks the structure and reads that type; it doesn't confirm the PAN exists.
Retainer stores your client’s PAN for TDS tracking and checks its format when you enter it. Try Retainer free