It return for the year ended 1.4.15 to 31.3.16 (assessment year 2016-2017)

You should file income tax return for the FY 2015-16 on of beofre 31st July 2016,

but you can file belated Inccome tax return for the FY 2015-16 on or before 31st March 2018, if you file after 31st July 2016 it will be consided as Belated income tax return and this type of belated ITR can not be revised.

There is always confusion for FY and AY.

To make the question simsple we can file return for FY 30th march 2016 till 31st july 2016 oe extended date it is ok.

I can file return for FY  31st july 2015 as belated return with interest on tax.

However if I want to file return now for FT  31st july 2014 or earlier year what is the procedure.

there no separate procedure u can file as usual but only diffrence is you need to pay more interest on tax

How to easily remember assessment year with relation to financial year for normal persons who are not CA or accountants.