Tax exemption for filing ofITR

1) If there is rental income too and the taxable income is within the basic exemption limit, then no need to file ITR. But if there is any TDS credit, then ITR to be filed for claiming refund.

2) The bank will not file ITR without the consent of the assessee. The assessee is required to provide a declaration on the basis of which the bank would deduct required tax if any and intimate govt. But if there is rental income, then this exception is not available, in which case only the assessee can file ITR.

Not voluntary, it is compulsory to submit declaration and other documents specified if the bank is required to deduct applicable taxes.. For more, read about section 194P.

I think the format is yet to be prescribed.