annual repair and maintenance of water supply at teressa sw sitc of one no dm 20 20 hp diesel engine driven water pump set at enam village teressa , supply, installation, testing and commissioning of dm20, 20 hp @ 1800rpm, two cylinder, water cooled, vertical diesel oil engine similar to kirloskar make model: dm20 ,with self start provision coupled,with water pump similar to kirlosker make model 26 sr9@ 1800 rpm multi stage centrifugal pump or equivalent with c.i casing, c.i impeller having having suc/del of 80/65 mm with a minimmum discharge of 5.6 lps at 136 mtr head along with supplying and installation of base frame of required size, coupling assembly with guard,g.i metal foot valve (80mm), foundation bolt & nuts, fuel tank assembly for 4.00 hrs with stand and fuel line hose and all accessories etc as required to make the engine & pump set complete & running.