survey, design, construction, supply, erection & commissioning of raw water intake structure ( fixed type ) , pump house on intake structure including pumping machineries with all related accessories, substation, staff quarters and raw water transmission main ( including road / railway crossing by trenchless method ) for drawing 234 mld raw water from the river hooghly and delivering to water treatment plant on epc-turnkey basis including 3 ( three ) months trial run and 5 ( five ) year subsequent operation and maintenance complete for the integrated surface water based piped water supply scheme for arsenic affected blocks of baduria, basirhat-i, basirhat-ii, deganga and swarupnagar in north 24-parganas under phe dte