PAN (Permanent Account Number) For Individuals (Salaried employee, Senior citizen, Self-employed, NRI) For Other Than Individuals (Company, Trust, AOP, BOI, etc.)
Aadhaar Number For Individuals (Salaried employee, Senior citizen, Self-employed, NRI)
Other User ID For Chartered Accountant, Tax Deductor, e-Return Intermediary, etc. (e.g., ITDREIN, ARCA, TAN)