Chennai Subways Waterlogging Advisory: Closed Traffic & GCC Pumping Stations Update

Greater Chennai Corporation has closed several low-lying subways including Gengu Reddy, Duraisamy, and Mandaiveli subways due to severe waterlogging following heavy rains today, October 20, 2026. High-capacity diesel pumps are active. Motorists should dial GCC helpline 1913 for real-time waterlogging updates. <h2>Official sources</h2><ul><li><a href="https://chennaicorporation.gov.in" target="_blank" rel="noopener noreferrer">Official source</a></li></ul>