"Section 139AA of the Income-tax Act, 1961 which was introduced by the Finance Act, 2017 makes it mandatory to quote your Aadhaar number in order to file your income tax returns (ITR). In other words you need to link you Aadhaar card to your PAN card if you want to file returns from now on."
There are 3 ways to do this only if your name matches in both the documents.
- Through SMS
- Through online: without registering
- Through online: with registered account
You can find more details here.
But what if your names does not match.
You need to change the name in either of the database so that it can match and get linked.
The process of change in aadhar seems to be easier and hassle free than attempting to change in PAN database as of now.
To update your Aadhaar card details, visit UIDAI portal
To update your PAN details, visit NSDL portal