Under Section 139AA of the Income-tax Act, 1961, it is mandatory to link PAN with Aadhaar. As per this section, if your PAN is not linked with Aadhaar by a date to be notified by the government then it would be deemed to become inoperative.
Additionally, can we link aadhar to PAN in Mobile?
How to link PAN and Aadhar via SMS? Another way of linking PAN with Aadhar is by sending SMS to 567678 or 56161 with registered mobile number. In order to do so, you need to type UIDPAN(12-digit Aadhaar)(10-digit PAN) and send it.
Secondly, what will happen if Aadhaar not linked with PAN?
A PAN that has not been linked with Aadhaar will prohibit the holder from opening a bank account, investing in shares, mutual funds, payment of salary or from transactions wherever a PAN is mandatory such as lower deduction of tax from salary, etc.