However , where the application is made online , the acknowledgment ( a PDF file ) which is generated after filling up the form must be forwarded to NSDL .
No documents are required to be filed with the application for allotment of TAN .
Where the application is made online , the acknowledgment ( a PDF file ) which is generated after filling up the form must be forwarded to NSDL .
No documents are required to be filed with the application for allotment of TAN .