tender for comprehensive maintenance and repair of existing pipeline of all types (di/ci/ac/pvc) and sizes at various depths, including sluice valves, non return valves, leakages and repair of illegal/not functional water supply connections, work includes excavation on any surface, bailing out water, refilling, material and labour cost, machine/equipment hire, and repair replacement of sluice valves components of all sizes (m.s spindle, g.m chuck nut, chimta, nut bolts, rubber jain, glan dori, grease etc.) includes pening/fitting, carriage from site to workshop and vice versa, and all repair related works as per engineerincharges direction, complete in all respect.length 75 km. , job work for increase the length of lowering pipe of tubewell and repair of nrv, sluice valve, ci bends etc. for sluice valve, ci bends etc. for tubewells and fire hydrants complete in all respects. . , job work for repair of electric equipments like fan, tube light mcb, board switch etc. complete in all respects. , job work for repair/painting 2 time in a year of 10 nos. tubewells structures like (pump chamber, boundary wall, gate, gentary) complete in all respect. , job work for repair/replacement of dozing set, supply and feeding of sodium hypo chloride of 7-10 percent complete in all respect. for 13 no. tubewells for 1 year.