Chennai has been suffering from floods for the last few weeks. The city’s infrastructure had been hit hard and life’s come to a standstill. The situation seems bleaker by the minute.

However, in Chennai’s reservoirs, the system is automated, with officials monitoring real-time data on a large screen. “If any errors occur, they can be addressed immediately,” he said.

Steady rains pounded Chennai, its nearby districts, and Puducherry, affecting public transport, including bus, train, and flight services. Authorities moved people from vulnerable areas to safe ...