7 cannot be discharged by referring to very strong suspicion and existence of highly suspicious factors to inculpate the accused nor falsity of defence could take the place of proof which the prosecution has to establish in order to succeed, though a false plea by the defence at best, be considered as an additional circumstance, if other circumstances unfailingly point to the guilt. 16. This Court in Jaharlal Das v. State of Orissa, (1991) 3 SCC 27, has held that even if the offence is a shocking one, the gravity of offence cannot by itself overweigh as far as legal proof is concerned. In cases depending highly upon the circumstantial evidence, there is always a danger that the conjecture or suspicion may take the place of legal proof. The court has to be watchful and ensure that the conjecture and suspicion do not take the place of legal proof. The court must satisfy itself that various circumstances in the chain of evidence should be established clearly and that the completed chain must be such as to rule out a reasonable likelihood of the innocence of the accused. In order to sustain the conviction on the basis of circumstantial evidence, the following three conditions must be satisfied: i.) ii.) the circumstances from which an inference of guilt is sought to be drawn, must be cogently and firmly established; those circumstances should be of a definite tendency unerringly pointing towards the guilt of the accused; and