hey priyanka,
first you have filed A.Y.2010-11 instead of A.Y.2009-10,
so now you have to download excel utility of A.Y.2009-10 and fill it, keep remember the last date is 31.03.2011 for A.Y.2009-10, so please file return before the said date.If you are filing e-return after that date, ITO may have power to impose penalty of Rs.5000.
and ya you also have made mistake by filling all details of A.Y.2009-10 to A.Y.2010-11 so you also want to revise said return but it can be possible only if you have filed it before 31.07.2010 otherwise you have no option regarding that of A.Y.2010-11.
Thanks,
Regards,
Kunal Desai