After due Date income tax filing

UNDER NORMAL CONDITIONS, IT IS NOT POSSIBLE TO FILE PRECEDING YEARS ITR NOW ...

ITR can't be filed after due date for the respective financial year. For the purpose of business loan, last three year ITR is required in private banks, so it is difficult to get funding from Private banks. 

Hence, you can try with government banks, but they require project report showing the future profits and may also ask for some other documents which are required to be submitted.