02 December 2009
For Regular Assessment u/s 143(3); first of all your case may be selected for scrutiny by the end of September 30 of next year. If you filed your Return on 30/05/2009 or 31/12/2009 for A.Y.2009-10 then it can be taken for scrutiny upto 30 09 2010.
However; assessment has to be completed by 31 12 2010.