On the same corridor, Larsen & Toubro emerged as the lowest bidder to build a 10.2km elevated line with 11 stations in two disjointed stretches on the northern suburbs between Madhavaram and CMBT as well as another 12.4km line with 12 elevated stations between Grain Market in Koyambedu and Elango Nagar and from Mugalivakkam to Puzhuthivakkam.
An integrated highway grade separator from Mugalivakkam to MIOT hospital and a vehicular underpass at Vanuvampet are also expected to be constructed. The 118.9km phase-1 costing ₹61,843cr is likely to be ready by 2026. The metro rail line will link the northern suburbs of Madhavaram with the southern-most localities like Madipakkam and Sholinganallur via the IT hub at Porur, as two bidders including a consortium have emerged as the lowest bidders qualifying to get the contracts to build nearly 34.2km elevated line on the suburban areas that are otherwise poorly linked by public transport.
CMRL floated a total of 19 tenders to construct phase-2 lines out of which eight have either been awarded or reached the final stage. Across the 11.6km stretch, eleven stations will come up at Madipakkam, Kilkattalai, Echangadu, Kovilambakkam, Vellakkal, Medavkkam Koot Road, Kamaraj Garden Street, Medavakkam junction, Perumbakkam, Global Hospital and Elcot. Similarly, the 10.2km line will have 11 stations between Assissi Nagar near Madhavaram to CMBT. In 12.4km line, stations will come up in three locations of Koyambedu-Grain market, Sai Nagar bus stop and Elango Nagar bus stop as well as in Mugalivakkam, DLF IT SEZ, Sathya Nagar, Chennai Trade Centre, Butt Road, Alandur, St Thomas Mount, Adambakkam, Vanuvampet, and Puzhuthivakkam.