bids are invited for dismantling and lowering of submersible pump sets and allied accessories i / c associated e&m maintenance works of various tube wells under hauz khas area constituency. - dismantling lifting & loweringof submersible pump set along with all allied accessories from t / wells i / c dismantling of column pipes by opening / tightening of nut bolts, providing / replacement of old / damaged rubber packing & re-jointing of cablestesting & commissioning of tube wells as per requirements.upto depth of bore aprox 250 ft to 350 ft & maintain their record book. staff to be engaged in each shift.unskilled-04 nos.semi skilled staff-02 nos. ( 1 no electrician 2nd class & 1 no fitter 2nd class ) total quantity : 1