The station has two suburban platforms and another
island platform for long-distance mainline trains. Since mainline trains do not halt at the station, the island platform remains unused. The platform is 280 m long and has been considered to be extended to 575 m as there are plans to halt long-distance trains at the station. The platforms are connected by
subways. These platforms are built to accumulate 24 coaches express train. The platforms are equipped with modern facility like display board of arrival and departure of trains. This is the first station and only till date that has subways to enter and exit the station. All other stations in Chennai have only foot overbridge. Initially, the subways were only up to G.S.T. road (station side). In 2006, the subway was extended inside the Thirusoolam airport complex.
Station layout ==Developments==