This new greenfield expressway with 5 sections will be Chennai’s 4th Ring Road. It will connect the towns of Singaperumalkoil, Sriperumbudur, Tiruvallur, Tamaraipakkam, Periyapalayam, Puduvoyal and Kattupalli at an estimated cost of Rs 12,301 crore.The expressway has a deadline of 2025 and...