By linking your PAN with Aadhaar, you are protecting yourself with fraudsters getting multiple cards by misusing your name. The I-T department can detect any form of tax evasion after a taxpayer's PAN is linked with Aadhaar.
In case a person fails to link his or her PAN with their Aadhaar card, the PAN will become inoperative. In such a case, the person will not be able to furnish, intimate or quote his PAN and shall be liable to all the consequences under the Income-tax ...