removal of obstruction, floating material and maintenance of bijwasan drain from rd 0 m to rd 4200 m- desilting of drain by pocklain machine or equivalent / manual means of otherwise including excavation of work in or under water and / or foul conditions as existing bridge and disposal of excavated material / earth within a lead of 50m on the bank of the drain in all kinds of soil i.e. to and fro movement of machine upto site of work complete. 2 desilting of drain by j.c.b. d.3 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 from movement of machine from upto site of work etc. complete. 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 including removal of disposal material outside the periphery of the drain by any mode of transport at own source of contractor within all lead to singhola land fill and lift upto 1.5m including cost of loading, unloading including extra for quantities of 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 carriage of municipal solid waste, garbage, building rubbish, waste marterial and malba etc., by mechanical transport including loading, unloading and disposal at rise eleven delhi waste management co. d.m.c. c&d waste site bakarwala sanitary land fill site of dmc as per direction of engineer-in-charge, including covered with tripal / polythene to cover the bed and top of dumper to avoid leakage of waste material. the amount paid by the contractor for dumping shall be reimburred on the basis of receipt issued by the dmc authority at bakarwala land fill site@ of rs. 324.50 / - per mt or prevailing rate at the time of execution of work. 5 deployment of labour equipped with all safety equipement ( safety gears ) and equipments are to be provided by the contractor at his own cost near / under bridges and vulnerable points in the drain.