Consultance services for preparation of Detailed Project report for construction of sluice / grill / drop gate for culverts (106 nos) and bridges (6 nos i/c 01 bridge of 4 spans) from GIN-105 to GIN-255 having BP No 243/9-S to 792/7-S in the state of West Bengal along Indo Bangladesh Border (IBB). SH: Package -III Consultancy services for preparation of detailed project report or construction of sluice / greel / drop gate for culverts (24 nos) from GIN-214 to GIN-255 having BP no 417/8-S to 794/3-S in the district of Uttar Dinajpur, Darjeeling and Jalpaiguri in state of west Bengal along Indo Bangladesh Border (IBB)