Tender For manufacture and supply of mono block wider pre-stressed concrete sleeper (pre-tensioned type) for sharp curves (of radius less than 350 m) for 25t axle load for broad gauge (1676 mm) 60 kg (uic) / 60e1/ 52 kg rails as per rdso drg. no.rt-8979 to rt-8982, alt-02/latest alteration and as per irs specification t-39 (6th revision-march-2021) and indian railway standard conditions of contract, both as amended upto actual tender opening date duly loaded in wagon/road vehicle. fixing of cross bracing arrangement vide rdso drg no.t-10239 should be followed.