Filing of income tax return

Dear All ,

Can anyone guide me on which file should I file my Income Tax return, when :-

1) I have only Salary Income.

2) Interest on Fixed deposit from Bank / Post Office.

I have some investment in MF also but it is not sold in 2014-15 but invested 3 years back should it to be shown , and profit on this should I show on accrual basis?

Waiting for a earliest feed back.

Jayanta