The Chennai Metro Rail Ltd (CMRL) on Wednesday submitted Detailed Feasibility Reports (DFR) for the extension of Corridor 5 from Koyambedu to Avadi (Via Tirumangalam, Mugappair) and the extension of Corridor 3 from Siruseri to Kilambakkam bus terminus via Kelambakkam at a total project cost of ₹11,834 crore. Both these are under Phase II of the Chennai Metro.The reports were submitted by MA Siddique, Managing Director, CMRL, to Ramesh Chand Meena, Additional Chief Secretary, Special Initiatives, Government of Tamil NaduThe first study for extension of Corridor 5 of...