surveying, geo-technical investigation, planning, designing, construction and commissioningof all the civil & electro-mechanical works of 27 mld raw water intake jetty including pump house, gangway, 400 kva electrical h.t. sub-station, raw water rising main from intake to wtp, river protection work & 22 mld capacity water treatment plant with 1500 cum ugr of 22 mld capacity conventional type surface water treatment plant ( approx. –1160 m3 / hr. ) ( 20 hours operation ) with tolerance of 25% over loading & with necessary civil, electrical ( according to i / e rules ) , along with 1.50 ml capacity clear water reservoir ( at least 0.50 meter above h.f.l. ) cum pumping station and800 kva electrical h.t. sub-station including construction of administrative building consist ofaccommodating office, laboratory room, scada room, conference room, staff room, chemical house, guard room etc. along with land filling, boundary wall, internal road , surface drain, retaining wall& all other allied works ( civil & electromechanical work & others, if any ) at chakdah including 3 months trial run and necessary training of maintenance staff & thereafter ( subsequently ) 5 ( five ) year operation and maintenance of intake & wtp on turnkey basis under amrut-2.0.