The Income Tax Department has introduced a one-page form for taxpayers to manually apply for linking their Aadhaar with Permanent Account Number (PAN), apart from the available online and SMS facilities. <br/><br/>An individual will have to mention both PAN and Aadhaar numbers and have to undertake a declaration stating they have not been allotted any other PAN than the one mentioned on the form. An official said, the form is just another procedure, via the paper medium. He said, the SMS and online modes are also available. <br/><br/>The I-T department has made it clear that taxpayers without Aadhaar number or its enrolment ID will not be able to e-file their income tax return. Aadhaar has been made mandatory for applying for PAN with effect from yesterday. The department has linked over two crore 62 lakh Aadhaar numbers with its PAN database.<br/><br/>