📞 Chennai Metro Helpline
1860-425-1515
♿ Accessibility Services
Pre-book assistance: 1860-425-1515 (24×7) or +91-44-2379-2000
📍 CMRL Head Office
Chennai Metro Rail Limited, Admin Building, CMRL Depot, Poonamallee High Road, Koyambedu, Chennai – 600107; Phone: 044-2437-8000