Supply Of Manufacture And Supply Of Prestressed Concrete Sleeper For M.g. 52 Kg & 60 Kg Uic / 60e1 Rails To Rdso Drg. No. T-3504 With Alt-5 And Conforming To Irs Specification For Psc Sleepers For Broad Gauge, Metre Gauge And Narrow Gauge Serial No. T-39-2021 Sixth Revision March 2021 With Corrigendum No. 1 . The Alt In Drawing And Specification Issued By Rdso Up To Tender Closing Date Shall Be Applicable..