The ad-hoc bonus is equal to an amount by which the bonus/ex-gratia paid/payable as per terms of deputation falls short of the total of (a) 1.5% of basic pay in Rajasthan Civil Services (Revised Pay) Rules, 2017 or 2.5% of Basic Pay in Rajasthan Civil Services (Revised Pay) Rules, 2008 subject to RS.600/- per month drawn during the year 2018-19 and (b) the amount of ad-hoc bonus admissible under this order.