Tender Document for TENDER ASTO-06- CMRL PHASE 1 EXTENSION – WASHERMANPET TO WIMCO NAGAR (under JICA loan agreement ID-P 258) Supply of Turnouts of UIC 60 IRS-T-12-2009 (60E1 PROFILE), Head Hardened Rail Grade 1080 in Ballast less Track For Chennai Metro Rail Project Phase-1 Extension”