Income tax Department in a recent notification has extend the time limit for filing ITR-V forms relating to Income Tax Returns filed electronically for A.Y. 2010-11 (filed during F.Y. 2011-12) and for A.Y. 2011-12 (filed on or after 1st April, 2011).
These ITR-V forms can now be filed upto December 31, 2012 or within a period of 120 days from the date of uploading of the electronic return data, whichever is later.
The ITR-V forms should be sent by ordinary post or speed post addressed to CPC, Post Bag No.l, Electronic City Post Office, Bengaluru-560100.

I think time limit for filing ITR-V form dates have been revised till March 31, 2013
I am not sure but let me find out.