Rate Contract For Manufacture And Supply Of Pretensioned Prestressed Concrete (Psc) 1 In 8.5 S Witches Portion Sleepers 1 To 16 As Per Rdsos Drawing No:T-4512, T-4793 To T-4806 With Latest Alteration(Up T O The Date Of Opening Of Tender) And Conforming To Indian Railway Standard (Irs) Specification T-45 (Fourth Re Vision-March-2021) For Pretensioned 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 ] ]