Late filling of income tax return refund

For AY 2014-15 and A.Y 2015-16, a belated return can be filed. However make sure that you make no mistakes as belated return cannot be revised. For AY 2014-15, last date for filing return is 31-03-2016

Wrt AY 2013-14, you can file for an application for condonation of delay in filing returns and claiming refunds. For this, there is no specific format. However give a sensible reason for not filing the return as the concerned authority might reject your application and not result in any refund for the relevant year

please write to CIC for condonation of dealy for earlier year of 2013

You have to write to CIT - commisioner of Income tax with a copy to AO assesing officer. 

AO will recommend it to CIT. if you have refund and ur income is below taxable limit then 

you can explain to AO.