tender for fabrication and supply of 1 in 8.5 diamond crossings with double slips [curved switch] b.g. for52kg rails on psc sleepers layout to rdsos drg. no.t-5364/latest alteration complete with cms acute x-ing tordso drg. no.t-4867/ latest alteration and cms obtuse x-ing to rdso drg. no.t-5265/ latest alteration and7000mm or switches [curved] to complete with all parts listed in the subassembly drawings but excludingstandard fish plate, fish bolts, elastic rail clips, insulating liners and metal liners. [n.b: term-latest-whereverused will mean the alterations and or amendments upto the actual date of closing of tender].