Execution Of Work Of I Drone And Terrestrial Lider Based Inspection Of Bridge No. 51 Up, Mid & Dn And 59 Up, Mid & Dn On Hwh-Kgp Section Under Den/ East/ Kgp And Ii Drone Based Visual Inspection Normal Of Bridge No.235 Up & Dn And 263 Up & Dn On Kgp-Bhc Section Under Sr. Den / South/ Kgp.