22 May 2013
You have to register yourself as a company on TDS-CPC Website. Then, you have to request for Download of Form 16 on that website. After downloading the file, your password for that file will be your TAN Number. You have 2 download options. Single PAN, & Bulk PAN. You can use either of them as per your need.
Revise your Return! If you do not revise it now, the IT Department will raise a demand at later stages, and it will increase complexity of the matter. So, better you revise it now when the matter is fresh, and you have control over the errors made by you.