8.Learned counsel for the petitioner would further submit that the defacto complainant is the biological son of Arumugam and Arayyee. After the death of said Arumugam, a Legal Heir Certificate has been issued by the Head Quarters, Deputy Tahsildar in Certificate No.PAMU/ 1804/ 2001 (A4) dated 22.03.2001, in which, Arayyee and P.W.2 have been shown as legal heirs of the deceased Arumugam. Whereas, by furnishing the false particulars, P.W.2 has obtained a false certificate claiming himself to be the legal heir of one Kuppayee wife of Palani @ Arumugam, and the Certificate has been issued by the Head Quarters, Deputy Tahsildar in Certificate No.PAMU/28338/90/A9 dated 15.12.1990. Thus to prove the fact that P.W.2 is the legal heir and son of the deceased Arumugam and Arayyee and not the son and legal heir of Kuppayee, the Head Quarters Deputy Tahsildar of Salem has to be examined. He would reiterate that Section 20 of the Prevention of Corruption Act, operates much heavily against the petitioner and the petitioner has to rebut the case by letting in evidence and thereby, summoning the witnesses and marking of the documents are very much essential for arriving at just decision of this case. Further, the witnesses sought to be called in defence have not been cross examined earlier and thereby, the order passed by the learned Judge has to be set aside and the petition has to be allowed