The government is now carrying out the metro rail construction work between Chennai Vannarapetai –airport and central-st.thomas mount.
The overall cost of the project is nearly Rs 14,600 crores. As the first phase, the 10km length metro rail system between Koyambedu and Alandur will commence its function during October 2014 and the related works are getting done in full swing. For the subway construction works, 12 tunnel boring machines are engaged.