Avadi is situated at a distance of 24 km. On the road leading to Tirupathi and to the west of Chennai. It is served by a good network of buses which pass through, originating from Chennai. It is also served by the Avadi railway station situated on the Chennai-Arakonam broad gaugeline. It has got an air force station in that area.
Avadi has become a township since 1 March 1996. It has now become a centre of Industrial activities as around it function Ordnance factory, tank factory and the army vehicle depot, - all belonging to the Government of India, The Shaw Wallace Company and the Southern Cables Corporation, manufacturing cables of different types. The Tube Investment of India, having a factory producing varieties of engineering goods, a nit manufacturing steel tubes and several other industries under private management situate here. The headquarters of the Special armed Police of the Tamil Nadu Government is located here. The Kendriya Vidyalaya, panchayat nion higher secondary schools, the government higher secondary school, a few higher secondary schools, run by private management, and a library maintained by the Local Library Authority are the institutions which faction here. A Police Station, Telephone exchange and township office are the other offices that function from here. The Highways Department maintains a travelers bungalow.