how can i proove revocation deed of will is false.

IF STAMP PAPERS ARE NOT GOOD.
IF PARTIES SIGNED ARE NOT SUPPORTING THE DOCUMENT.
IF THE SIGNATURES DO NOT TALLY WITH THAT OF ORIGINALS.
IF YOU PROVE ON THE DAY OF EXECUTUON OF DOCUMENT THE PARTY IS SOME WHERE ELSE.
IF YOU BELIEVE BY SENDING SIGNATURES FOR FORENSIC LAB FOR COMPARISON OF SIGNATURES.