laying different diameter pipeline of hdpe pipe pn-6, pe-100 by mechanical horizontal boring along the road in built-up areas or where open trenching not feasible for "jagulgachhi pwss & kashinathpur pwss to accommodate fhtc in bhangar-i block under south 24-parganas w/s division-i for augmentation of surface water based w/s scheme in the arsenic affected areas of south 24-parganas district under jjm." (sm/15754, sm/12016)
