Fabrication And Supply Of 7000 Mm O R Switches [Curved] For 1 In 8.5 Diamond Crossing With Double Slip Bg For 60 Kg. Rails [Uic] On Psc Sleepers Layout To Rdso Drg. No. T 6494/ Latest Alteration & Spn, Irs/T 10 2000 For Fabricated Switches Corrigendum No 01 Of Dec 2016 (Complete With All Parts Listed In The Sub Assembly Drawings But Excluding Standard Fish Plate, Fish Bolts, Elastic Rail Clips And Insulating Liners/Metal Liners) As Amended Up To Date Of Closing Note/ Latest Alteration/ Corri