Tds revised return

I HAVE FILED THE TDS RETURN OF MY CLIENT THROUGH A CONSULTANT. NOW, I WANT TO FILE THE REVISED RETURN OF MY CLIENT FOR WHICH A   COPY OF ORIGINAL ACKNOWLEDGEMENT IS REQUIRED.

HOWEVER, THE ORIGINAL IS MISPLACED AND I HAVE ONLY ITS ACK. NUMBER .

PLEASE GUIDE ME AT THE EARLIEST AS MY CLIENT IS GETTING HEFTY PENALTY EVERDAY.