Vaigai Express

The Vaigai Express is an Intercity Express high-speed express train which runs daily between Madurai and Chennai, via Tiruchirappalli. It is operated by the Southern Railway zone of the Indian Railways and was introduced due to increasing demand for a day train between the cities during the 1970s. It was the first instance in which a high-speed train was introduced on a metre-gauge railway within the Southern Railway zone. Vaigai SuperFast is fondly referred to as the "King of Southern Railway"; and its rake sharer Pallavan Express "Prince of Southern Railway" running between Chennai Egmore and Karaikudi Junction are collectively known as the "Chord Line brothers".

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