MALIGAON, Oct. 9 -- Northeast Frontier Railway (NFR) has carried out a number of important works in enhancing infrastructure and operational safety in the Lumding-Badarpur Hill section, one of the most challenging terrains of Indian Railways. At the Bihara-Hilara section, NFR successfully completed major retrofitting of Bridge No. 359 (3x18.3m Composite Girder) at Kilometer 159/2-3, removing the previous 45 kmph speed restriction. In September 2025, comprehensive strengthening including concrete removal, grouting, dowelling and micro concreting was carried out. Following the completion of the work, the sectional speed has been increased to 75 kmph, enabling safer and faster train operations. In addition to bridge rehabilitation, NFR has suc...