tender for providing of mechanical lifting arrangement for day to day maintenance of various tube wells installed in gk-i ward in greater kailash constituency ac-50. , providing of mechanical vertical lifting arrangement (vertically to extent of up to 4.5 mtr.) mounted on light motor vehicle, lowering/ lifting of e&m equipments along with requisite manpower and all allied accessories of tube-wells including dismantling of double flanged gi pipes by opening /tightening of nut bolts, replacement of old damaged rubber packing /nut bolts/ jointing etc as required. complete tools & tackles, safety gadgets as required and other allied material as per site requirement. the work also includes testing & commissioning of tube-wells as per site requirement.