A mately acted in the exercise of the right of private defence is a question offact to be determined on the facts and circumstances of each case.· No test in the abstract for determining such a question can be laid down. In determining this question of fact, the Court must consider all the surrounding circumstances. It is Bnot necessary for the accused to plead in so many words that he acted in self-defence. If the circumstances show that the right of private defence was. legitimately exercised, it is open to the Court to consider such a plea. In a given case the Court can consider it even if the accused has not taken it, if the same is cavailable to be considered from the material on record. Under Section 105 of the Indian Evidence Act, 1872 (in short 'the Evidence Act'), the burden of proof is on the ac.cused, who sets up the plea of self-def~nce, and, in the absence of proof, it is riot possible'for the Court to presume the truth of the plea of selfDdefence. The Court shall presume the absence of such circum- stances. It is for the accused to place necessary material on record either by himself adducing positive evidence or by-eliciting necessary facts from the witnesses examined for.the prosecution. An accused taking the plea of the right of private defence is not necessarily required to call evidence; he can esE tablfsh his plea by reference to circumstances transpiring from the prosecution evidence itself. The question in such a case would be a question of assessing the true effect of the prosecution evidence, and not a question of the accused discharging any burden. Where the right of private defence.is pleaded, the F defence must be a reasonable and probable version satisfying the Court that the harm caused by the accused was necessary for either warding off the attack or for forestalling the further reasonable apprehension from the side of the accu:.ed. The burden of establishing the plea of self-defence is on the accused G and the burden stands discharged by showing preponderance of probabilifies in favour of that plea on tr2 basis of the material on record. (See Munshi Ram and Ors. 1. Delhi Administration (AIR 1968 SC 702), State of Gujarat v Bai Ff!tima (AIR 1975 SC 1478), State of UP v Mohd. Musheer Khan (AIR 1977 HSC 2226), andMohinder Pal .Jolly v.State of Punjab(AIR 197·9