Tenders for Ireplacement Of Panel Interlocking System With Centralized Electronic Interlocking System At Dupadu Station Iiprovision Of Additional Two Loop Lines To Deal Goods Traffic And To Facilitate Train Operations At Dupadu Station- Signal And Telecommunication Arrangements Iii Provision Of Multi Section Digital Axle Counter Msdac Complete System In Dual To Existing Track Circuits At Bolaram Station Ivprovision Of Multi Section Digital Axle Counter Msdac Complete System In Dual Detection To Existing Track Circuits At Nizamabad Station