60 Kg Wider Prestressed Concrete Sleepers For Bridge Approaches With Usp Conforming To Rdso Drg. No. T 8971 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 38=11 Nos.) And As Per Irs Specification T 39 2021 (To Latest Revision), Both As Amended Up To Date Make By M/S Patil Rail Infra Structure, Pvt. Ltd., Hyb.