Mettur Dam railway station (station code: MTDM) is an NSGâÂÂ6 category Indian railway station in Salem railway division of Southern Railway zone. It is a railway station situated in Mettur, Salem district in the Indian state of Tamil Nadu. The station is end station on the âÂÂMettur Dam line. As of 2025, only one passenger train is operated to Mettur dam is from Erode Junction via Salem Junction because unlike other sections of Southern Railway, this small corridor is heavily concentrated on freight traffic.