Government of India mandates everyone to link their Pan and Aadhaar card, while they've extended the deadline to June 30, 2021 its prudent to check and link the cards now to escape last minute rush. Here is how you can check and link your Pan and Aadhaar:
Checking if you PAN is already linked to Aadhaar:
Step 2: On the screen enter your PAN and Aadhaar details and click on 'View Link Aadhaar Status' button
Step 3: You'll see the link status. In case it's not linked see below.
Linking PAN and Aadhaar:
Step 2: enter the details on the screen
Step 3: Request OTP - please note that OTP will be sent to you Aadhaar registered mobile number
Step 4: Click on 'Link Aadhaar'
You are done. Hope this helped. Feel free to comment in case you are running into any issues.