CAN WE MAKE THE AGREEMENT IN BACK DATE

Dear Sir,

                            I purchased the Bond Paper(Stamp Duty) on 01st May 2010 
But I want to execute the Agreement from 01st April 2010,

1) Is it possible under Agreement Act

2) Is it enforceable under law

3) If not possible, then what remedies available for making agreement in Back date.

              Regards
                 Nitesh Mishra

                 0325001617