According to the Income Tax Act 1961, it is mandatory for all PAN holders, who do not fall under the exempt category, to link their PAN to Aadhaar before March 31, 2023.
PANs that are not linked to Aadhaar will become inactive as of 01.04.2023.
The essential is essential. pic.twitter.com/HiFamrv5F0
— Indian Income Tax (@IncomeTaxIndia) December 3, 2022
How to link Aadhaar with PAN card:
To link the Aadhaar card with the PAN card, you will need to visit the electronic income tax filing website https://www.incometax.gov.in/iec/foportal/.

After going to the website, you will see the quick links option on the left side.

Now here you have to click on the Link Aadhaar option.

After that you have to enter PAN and Aadhaar number.

Then an OTP will appear on your number, after entering, your Aadhaar card will be linked to the PAN card.
Another way to link PAN with Aadhaar: If you want to link Aadhaar with PAN, you need to send SMS to 567678 or 56161 from your registered phone number. This SMS must be sent in the UIDPAN format
How to check if Aadhaar is linked with PAN or not: To check if your Aadhaar is linked with PAN, you must first visit the eFiling website. Then go to Quick Links option and click on Aadhaar Link. Now a new page will open. Here it will be written in the hyperlink. Click here for status. Then you have to enter the PAN and Aadhaar numbers after clicking on the hyperlink. You will get your information in View Link Aadhaar Status.