raising and strengthening of sundarban embankment by brick block pitching from ch. 6.75 km. to ch. 7.00 km. at mouza masjidbati facing river hogal and from ch. 11.250 km. to ch. 11.475 km. at mouza kalahajra (total effective length 475.00 m) facing river hana in block and p.s. basanti, dist. south 24 parganas..
