ground of "grave and sudden provocation" the facts that are required to be proved are (1)that the accused received provocation; (2) that the provocation was (a) grave, and (b) sudden; (3) that he was deprived of his power of self-control by the provocation; (4)that he caused the death of the person who gave him the provocation. Further, the question whether the provocation was grave and sudden enough amounting to commission of murder is a question of fact, but should not be treated as a question of law and should be decided basing on the facts and circumstances of each case. In the instant case, as per the evidence of PW.2, the accused and the deceased quarreled on a petty issue, i.e., with regard to carrying PW.2. PW.2 wanted to carry her as her legs were paining, for which, the accused refused and beat her, whereupon the deceased abused/slapped the accused. It is not a case of grave and sudden provocation. For merely abusing/sla pping the accused, there was no necessity for the accused to beat the deceased, who is his own wife, with a stone like MO-1 on vital part oF her body, i.e., head and cause bleeding injuries, resulting in her instantaneous death. The accused acted in a cruel and unusual manner. There is no evidence on record to arrive at a conclusion that there was grave and sudden provocation by the deceased to the accused, due to which, the accused lost his self-control, incapable of understanding his acts before cooling down, caused the subject death of the