Chennai Metro Phase-2 Koyambedu-Butt road corridor approaching operational launch, India January 24, 2026 | Asia Pacific News, News Chennai Metro Rail Limited (CMRL) is advancing the opening of the 12 km elevated metro rail stretch between Koyambedu and Butt Road on Corridor-5 of Phase-2, targeting commencement of passenger servic... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password