Repairing & desilting of machine holes by entering skill labour with using necessary protecting gears and safety equipments, placing plugs and dewatering pumps etc. in various existing sewage / storm drainage lines, machineholes etc. including carting of desilted materials, and debris from site and raising existing machinehole, & chamber cover to road lavel and finding Machinehole with metal detector in Various society area / at various places of sub zone-2 in south west(athwa) zone, surat municipal corporation, surat.