60 Kg Wider Prestressed Concrete Sleepers for Bridge Approaches conforming to RDSO Drg. No. T- 8970 to 8978 ( to latest alteration ). ( One Set consists of 03 Nos. of PSC sleepers conforming to RDSO Drg. No. T- 8970 and One PSC sleeper each conforming to RDSO Drg. No. T- 8971 to T- 8978 i.e. total of 3 + 8 = 11 Nos. ) and as per IRS Specification T- 39- 2021 ( to latest revision ), both as amended up to date.