Balaji Railroad Systems has received a Letter of Acceptance from Chennai Metro Rail Limited for preparing detailed feasibility reports (DFRs) for 3 different routes of new Regional Rapid Transit System (RRTS) lines proposed in Tamil Nadu. These 3 routes include the 170 Km Chennai-Chengalpattu-Tindivanam-Villupuram, 140 Km Chennai-Kanchipuram-Vellore, and 185 Km Coimbatore-Tiruppur-Erode-Salem.