About E-Filling, sending receipt of ITR-V

FACT:

1. I SUBMITED ITR-4 OF MY CLIENT FOR A.Y. 2011-12. AFTER SUBMITTING, I CAME TO KNOW ABOUT A MISTAKE IN THE ORIGINAL RETURN.
2. THE RETURN HAS BEEN REVISED.
3. BUT NEITHER ORIGINAL NOR REVISED ITR-V HAS BEEN SEND YET.

QUESTION:

1. WHETHER I HAVE TO MAKE SIGNATURE OF MY CLIENT ON BOTH THE RETURNS (ORIGINAL AND REVISED)?
2. WHETHER I HAVE TO SEND BOTH THIS ITR-V TO BANGLORE OR ONLY REVISED ITR-V IS TO BE SEND?

PLEASE SOLVE MY QUERY.