The TAN can be cancelled by following procedure:
- Go to http://tin.nsdl.com
- Download the form "Form for Changes or Correction in TAN"
- Fill up properly and indicate TAN numbers you want to
cancelin point 6 of the Form.
Cancellation of PAN
There is no express
However, I presume that government will never cancel the PAN , maybe your PAN shall be made ineffective after your application. Reason is that