annual repair and maintenance of drains removal of obstruction, floating material and maintenance of bijwasan drain from rd om to rd 4200m in district south west.- 1 removal of obstruction by j.c.b. machine or equivalent excavation of work in or under water and / or foul conditions and disposal of excavated desilted material/ earth within a lead of 50m in all kinds of soil including to and fro movement of machine upto site of work etc. complete. (a/r) 2 hiring of tractor with trolly on daily basis alongwith operator, helper, fuel, mobil oil etc. complete for disposal of garbage, malba, silt etc. complete as per direction of engineer-in-charge (for purpose ofpayment, working days of tractor with trolly will be recorded). 3 maintenance of bijwasan drain from rd 0m to rd 4200m after completing desilting of drain, free from floating material containing grass, patera, weeds, garbage, polythene waste, animal dung, sludge work executed in or under water or in foul position etc. complete to the entire satisfaction of the engineer-in-charge on monthly basis throughout contract period. 4 clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared