annual repair and maintenance of 56 nos koshi barrage gates 46 nos spillway gates size 60 feet x 21 feet and 10 nos u/s gates size 60 feet x 26 feet and 10 nos head regulator gates size 40 feet x 12 feet two tier eastern and western canal of 0 r.d with their hoisting system eot cranes and mono rail crane and its allied components for five years .
