supply of diamond crossing with single slip with curved switch for b.g. (16731 mm) for 60 kg r260 rail to rdso drg. no.t-6493 (alt.2). , manufacture and supply of 1 in 8.5 diamond crossing with single slip with curved switch for b. g. (16731 mm) for 60 kg r260 rail to rdso drg. no.t-6493 (alt.2) and irs specifications t-10- 2025, t-12 -20 09 and t-29- (revised-2024) on psc sleepers lay out complete with 02 nos cms acute crossings to rdso drg. no.t-4967 (alt.9), 02 nos cms obtuse crossings to rdso drg. no.t-6495 (alt.1) and 7000 mm or curved swit ches with all parts listed in the assembly & sub - assembly drawings but excluding standard fish nate, fish bo lts & nuts, grsp, erc and liners. the required rails will be purchased by the manufacturer.(the alt in drawin gs and specifications issued by rdso up 10 days before to tender closing date shall be applicable in this tend er ).rdso drawing attached in documents. qty tolerance: not permissible. ]