( 1 ) THIS is an appeal against the decision of the Commissioner for Workmen's Compensation, rejecting the claim of the appellant Parwatibai to compensation as the widow of one Kalu who was an oilman in the employ of the respondent.

( 2 ) THE appellant alleged that on 29-4-1954 Kalu was working as a substitute for a jobber and in the course of the work he was asked to do, ho had to mount a belt on a machine and start it and that while bolting the machine he received a jerk and a shock, and fell down and shortly afterwards) died of heart failure. The appellant claimed compensation to the extent of Rs. 2,400/ -. These allegations were denied by the respondent, who stated that when he was in the Mill premises Kalu complained of pain in the chest; that thereupon he was taken to the Mill hospital for first aid and then removed to M. T. Hospital where he died; that Kalu's death was due to cardiac failure and that it was not due to any personal injury caused by any accident arising out of and in the course of his employment.

( 3 ) THE appellant examined on her behalf two witnesses Bodya and Rewashankar to show that her husband Kalu received a jerk and shock while belting t