How to Link your Adhar Number to your PAN Card.
go to www.incometaxindiaefiling.gov.in
Then if you are filing returns login in to the site.
Go to profile settings and link Adhar.
If you already linked, a message will comes that your Adhar Number ....is already linked.
If not a Form will appear.
Fill it with details and enter Captcha and click on Link Adhar
A message will comes that your Adhar Number linked.
If you are not a registered member
in the left side menu of the site click on link Adhar
A form will appear. Fill the required info and enter captcha and click on Link Adhar.
A message will comes that your Adhar linked. That's it.
For more details see this Video.
https://youtu.be/y1-es5UsT0A