As per the section 139AA of the Income Tax Act, submission of aadhar number is mandatory for PAN card application and filing income tax returns. It came in effect from July 1, 2017.
Steps of Linking Aadhaar with ITR:
How to Check Status of Aadhar Link Request?
Follow these instructions for checking the status of aadhar linking request:
Yes, without PAN and aadhar you won’t be able to file your income tax returns.
No, they are exempted from filing income tax returns.