Annual Repair And Maintainence (Oiling & Greasing) And Painting Of Diff.Size Of Gate And S/F/F/ Of Vertical Plate At Walidad Lock Gate With Hoisting Arrangement Of Distributry And Sub Distributry Patna Main Canal Out Let Gates, Lock Gate, Khirki Gate,And H/R Gate Of Patna Main Canal During Kharif Irrigation Period In 2025 - 26