Tender For corrigendum : manufacture and supply of pre-stressed mono block concrete sleeper (pre-tensioned type) for broad gauge (1673mm) as per rdso design for 1 in 16 psc turnout sleepers (sets) to rdso drg. no. rdso/t-5691 with latest alterations/amendments before 15 days tender opening and to irs specifications no. t-45 (4th revision) march 2021 with latest amendments/alteration before 15 days tender opening.