27 February 2013
Notification Number 01/2013. Just We Received Last date to File return. 25/03/2013. But Not Yet Utility released for Filling Return. Date may Get Further Extended.
if you are telling about "Revised form ST-3" then my fellow friends are correct But if you want to know about "Revised ST-3" then as per the rule a revise return is to be filed in triplicate on Form ST-3 and such revised return can be filed within 90 days from the date of submission of the return under rule 7.