Till what date i need to file if i file now?

The bank statements will be required from 1/4/13 to 31/3/14 to prepare the return. Kindly note that the due date for tax audits has been extended till 30/11/14. Your accounts should be ready before that and should be submitted to a CA for Audit.

If you are not an audit case, then you can file belated return till 31st March15 with interest as the due date was 31/07/14.