operation and maintenance of rajiv gandhi drinking water supply augmentation project for mewat (haryana) ranney well segment leg-i. “operation and maintenance of 2 no. ranney wells, 26 nos. tubewell, pumping machinery and other equipments alongwith mtc. of pipe line and mtc. of civil structures at mbs maholi, mbs maryaki and ibs maryaki, maintenance of psc/ms/di/ac pipe lines and specials alongwith maintenance of its civil structure for rising main 800mm i/d from mbs maholi to mbs maryaki and mbs maryaki to mbs punhana and sub rising main of ibs maryaki to all sbs and other works contingent thereto`. (for two years)