lffl determination of rehabilitation is a long term affair 8.K.,.., and once it has been determined it cannot go on Mid#rUlli,. increasing from year· to year except in case of a Ti141/wr v. Pq,r sudden appreciable rise in prices or on account of MUUC.. Lt,, new blocks being added followed by further rise W .... /. of prices after the purchase of the new blocks. As was pointed out in the Associated· Cement Companies case ('), the tribunal has before awarding the proper amount in respect of rehabilitation, to make deduction, (firstly) on account of break-down value, (secondly) on account of depreciation and general liquid reserves available to the employer other than those reasonably earmarked for specific purposes, and (thirdly) on account of the rehabilitation amount which may have been allowed to the employer in previous years and remained unused in the meantime. It appears tbat in the year 1954-55 the net figure arrived at for rehabilitation for· that year was Rs. 33.39 lacs after allowing depreciation for that year and as the available surplus after deducting other prior charges was only Rs. 24.46 lacs, the tribunal did not grant any bonus to the workmen. Even so it is remarkable that out of the rehabilitation amount of Rs. 33.39 lacs for that year a sum of Rs. 24.46 lacs was left in the hands of the employer as rehabilitation amount. The tribunal seems to have ignored this fact altogether in calculating rehabilitation amount for the years in dispute. As was pointed out in the Associated Cement Companies case (1), all the rehabilitation amount which may have been allowed to the employer for rehabilitation in previous years but remained unused for rehabilitation in the meantime, has to be taken into account in arriving at the amount required for rehabilitation. The same result can be arrived at in other way, provided there is no appreciable rise in price, by taking the rehabilitatior, amount once arrived at and adding to·it such amounts as may be due for rehabilitation for new blocks and also such amounts as may not have been left in the hanas of (I) [1959] S. C. R, P25,