The simplest way to link your AADHAAR and PAN is by using an SMS to your AADHAAR registered mobile number.
All you need is a working mobile number and e-mail id which are registered with your AADHAAR at the UIDAI database.
By completing the linkage you will be able to help the government combat tax evasion, eliminate multiple PAN cards associated with the same person and, most importantly, get acknowledgement of your tax return (ITR-V) without having to send a physical document to the CPC, Bangalore.
The Income Tax Department allows you to link your AADHAAR to your PAN by sending an SMS to either 567678 or 56161.
Given below is the format of the SMS to be sent:
UIDPAN<SPACE><12 Digit AADHAR Number><SPACE><10 Digit PAN Number>