Repair And Maintenance Of Anti Flood Sluice Gate With Fabrigation, Errection And Installation Of Gate Leaf, Bottom Seal, Side Groove, Musical Knot Rubber, Flat Rubber, Iron Plateform And Approach Stair And Its Hoisting Arrangements Etc. At Different Point Of Katihar Town Protection, Ajampur Shankar Embankment, Before Flood 2026 Under Irrigation Mechanical Division Purnea.