Tender for providing traction maintenance services with trained manpower for Traction Overhead Equipment and Power Supply installations at 41 Metro Stations consisting of 21 nos. Underground and 20 nos. Elevated stations for Corridor-1 & Corridor-2 of Phase-1 and Phase-1 extension including two depot sections at Koyambedu, Wimconagar and three receiving substations at Koyambedu, Alandur, Chennai Central of Chennai Metro Rail Limited