various miscellaneous works pertaining to stage-iii and iv/ chp ,which includes quenching of fires, cleaning of chute jams, cleaning of the stagnated wet coal and its coal boulders at wagon tipplers-5 and 6 and charges for movement of load wagons from railway siding to wagon tipplers-5 and 6 and formation of empty wagons and return back to railway siding pertaining to stage-iii and iv/chp in genl.sub-division of operation division, coal handling plant/stage-iii and iv/dr.nttps as and when required during the period from 01.04.2023to 31.03.2024 or till completion of quantities.