Permanent Account Number (PAN) is a code that acts as an identification for Indian nationals, especially those who pay Income Tax. It is a unique, 10-character alpha-numeric identifier, issued to all judicial entities identifiable under the Indian Income Tax Act, 1961.
In India, a Tax Deduction and Collection Account Number (TAN) is a 10 digit alphanumeric number issued to persons who are required to deduct or collect tax on payments made by them under the Indian Income Tax Act, 1961.
The Unique Identification Authority of India (UIDAI) is a central government agency of India. Its objective is to collect the biometric and demographic data of residents.