annual work of maintanance of materials with labour of all repairing work a long with lowering and removing m.b.h and other company polder pump 75 hp and centrifugal moter pump and also also along with repairing works of other size of submersible pumps,centrifugal pumps being purchased by municipality in coming year all type of repairing work along with required cable, sluice pump key stud, s.s nut, s.s n.r.v shaft impellor section rubber bust shaft rewinding motor pump punvtulg upper - lower .