PAN stands for Permanent Account Number. It’s a ten-digit unique alphanumeric number issued by the Income Tax Department. It issued in the form of a laminated plastic card (commonly known as PAN card).
Given below is an illustrative PAN:
PAN Format- First Five digit is always Alphabetic than four digit Numeric and last digit Alphabetic. ALWPG5809L
The 4th letter is important as it denotes type of assessee.