A Government servant under suspension shall be entitled to the following payments, namely : (i) in the case of a Commissioned Officer of the Indian Medical Department or a Warrant Officer in Civil Employ who is liable to revert to Military duty, the pay and allowances to which he would have been entitled had he been suspended while in military employment; (ii)in the case of any other Government servant (a) a subsistence allowance at an amount equal to the leave salary which the Government servant would have drawn if he had been on leave on half average pay or on half pay and in addition, dearness allowance, if admissible on the basis of such leave salary: Provided that where the period of suspension exceeds twelve months, the authority which made or is deemed to have made the order of suspension shall be competent to vary the amount of subsistence allowance for any period subsequent to the period of the first twelve months as follows Fundamental Rule 54 is to the following effect: "54(1) When a Government servant who has been dismissed, removed, compulsorily retired or suspended is re instated or would have been re instated but for his retirement on superannuation while under suspension.