providing fhtc including supplying, laying, fitting, fixing of 15mm nb pvc ( schedule 80 ) / 20mm od hdpe ( pe100, pn16 ) pipe with all necessary specials, 10 mm gun metal ferrule, saddle piece etc. all complete with laying of distribution system including specials, valves & pipe supporting structure, construction of boundary wall ( 675m length ) , chlorine room, drain ( i300 m length ) and approach road ( 60.0m length and 3.0m wide ) , construction of 900 cum capacity 20 mtr. staging height rcc over head reservoir including pile foundation, pipe connection and cost of pipes, specials and soil investigation for the work of construction of r.c.c elevated reservoir of capacity 900 m3 staging height 20mtr. at surface water based piped water supply scheme forsaguna zone-vi ( part-i ) in chakdah block of nadia district under nadia arsenic division-i, phe dte