27 March 2016
1st of all you can submit revised return only if the original return was submitted u/s 139(1) within due date. For AY 2014-15 revised return can not be filed after 31.03.2016.
27 March 2016
If an assessee has filed his return of Income u/s 139(1) of Income Tax Act 1961 i.e. within the due date of filing the return and if he subsequently finds that in the original return he has committed some mistake bonafidely then he can revise his return of income u/s 139(5) of Income Tax Act.
Time period of filing the revised return: As per section 139(5), the revised return can be filed before the expiry of one year from the end of the relevant assessment year or before the completion of assessment, whichever is earlier.
Therefore a return of A.Y 2014-15 can be revised till 31st March 2016 or before the completion of the assessment whichever is earlier.