that such minimum wage should be fixed for the price index prevailing at the time of the award taking 100 as the basic index for the year 1939, and that on that basis, the basic wage and dearness allowance should be Pa. 73, and that Pa. 11 was payable as production bonus; (2) that the dearness allowance element need not be linked to the price index, but that wage should be fixed at the prevailing price index leaving it to the workmen to ask for increase in minimum wage on any further rise in price index; (3 ) that the revised wages were payable with effect from 13th December, 1962; (4) that the three elements of basic wage, dearness allowance, and production bonus which make up the total minimum wage packet of Rs. 84 (Rs. 73 + Pa. 11) should be in the proportion of 3: 3: 1, and that profit bonus was payable at three months ' basic wage.