hiring of 1 no hydraulic operated high pressure suction cum jetting machine ( mounted on mahindra bolero ) for maintenance of sewerage system in narrow lanes and by lanes in ward no . 15s and 16s janak puri constituency ac 30 under ee ( west ) -i , hiring of 01 no high pressure suction cum jetting machine mounted on mahindra bolero ( cng ) having standard pumps and having water tank capacity of 1500 ltrs . with iso jetting pumps including driver cum operator and 02 nos of helpers with all safety equipments as per safety norms including operation and maintenance of machine for maintenance of sewerage system in narrow lanes .