Rate Contract For Manufacture And Supply Of Pretensioned Prestressed Concrete(Psc) Sej Sleeper S For 60Kg/52Kg Rails As Per Rdso'S Drg No:T-4149 With Latest Alteration(Up To The Date Of Opening Of Tender) A Nd Conforming To Indian Railway Standard (Irs) Specification T-39 (Sixth Revision-March-2021) For Pretensione D Prestressed Concrete (Psc) Sleepers With Up To Date Of Amendment (Up To The Date Of Opening Of Tender). [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]