surveying, design, construction, and commissioning of 6.74 mld ( approx. –360 m3 / hr with 6 % loss & 20 hours operation ) capacity surface water treatment plant ( with tolerance of 25% over loading ) & 0.8 ml capacity clear water reservoir ( twl of cwr will be 0.5 meter above h.f.l. ) cum pumping station and 400 kva ht sub-station, 1000 cum. capacity intermediate clear water reservoir ( icwr ) with pumping station along with wbsedcl cum operator room along with all other allied works ( civil, electro-mechanical & other works, if any ) for beldanga municipal area ( including 3 ( three ) months trial run and necessary training of maintenance staff & thereafter ( subsequently ) 5 ( five ) year operation and maintenance of the plant ) under amrut 2.0 on turnkey basis.