Answer: Chennai
Notes: South India’s first Air-Conditioned Electric Multiple Unit (AC EMU) train has started operations on the Chennai Beach-Chengalpattu corridor. This marks a major milestone for Chennai’s suburban rail network, which is a key transport system for the city and nearby areas. The service is operated by the Chennai division of Southern Railway. It is the first AC EMU service in southern India, according to officials. The train has advanced features like automatic doors and a passenger information system, offering a more comfortable and modern travel experience.
