<s>[INST] Can an application for TAN be made on a plain paper? [/INST] ​No. TAN Application can be made only on Form 49B. The application form can be downloaded from the website of the Income Tax Department (www.incometaxindia.gov.in) or NSDL ( https://www.protean-tinpan.com/​ ) or obtained from any other source. The application is also available at TIN Facilitation Centres.​ </s>