If you haven’t yet linked your Aadhaar to your PAN,
1. You can link the same online from Income tax portal
2. Alternatively, you can send an SMS to 567678 or 56161 to link or check the status:
Type a message in following format:
UIDPAN <space> <12-digit Aadhaar> <space> <10-digit PAN>
Send the message to either 567678 or 56161 from your registered mobile number
If the information provided is correct, the Aadhaar will be linked to PAN successfully.