Manufacture And Supply Of Prestressed Monoblock Concrete Sleeper (Pretension Type) For Wider Base Bridge Guard Sleeper As Per Drawing No Rt-8970 Along With Latest Alteration To Suit 60Kg (Uic)/60E1/52 Kg Running Rail And Irs Specification No.- T-39 (Sixth Revision-March 2021) And Amended Upto Date, If Any, Duly Loaded In To Road Vehicle/Wagon