• Great southern Trunk road(GST) or national highway (NH 45) of south india starts from Kathipara Junction, Chennai and extends up to Theni. It connects Chennai to its airport and southern suburban areas.
  • Success of Mahindra World City & announcement of SEZ 2005 policy led to development of IT/ITes SEZs (Shriram Gateway in Perungalathur and L&T Estancia in Guduvanchery) along GST Road.
  • In addition, availability of land parcels, proximity to OMR and International Airport and connectivity through Mass Rapid Transit System (MRTS) supported growth in this region.
  • GST Road refers to the stretch across NH-45 from Kathipara Junction till Mahindra Worldcity in Chengalpet