Check your PAN card
Use the Income Tax e-Filing portal
Use the “Know Your PAN” service on the Income Tax website
Check Form 26AS
Check your income tax return acknowledgment
Check bank records linked with your PAN
Check salary slips or tax documents from your employer
Contact your tax consultant or CA
Visit a PAN service center or NSDL/UTIITSL center
Call the Income Tax helpline or PAN customer support