Tenders for Bpq-Kzj, Kzj-Ki, Wd-Sc & Sc-Kzj Sections: Welding Of Rail Joints 60Kg/52Kg By Means Of Mobile Flash Butt Welding Plant In Situ At Various Locations Under Sr.Den/North/Sc, Sr.Den/West/Sc & Den/Central/Sc Sections In Connection With Complete Track Renewal S And Through Rail Renewal S Work.