Avadi is a residential locality. It is located in the Western part of the metropolitan city of Chennai, Tamil Nadu. it is a Special Grade Municipal Corporation of Chennai Metropolitan Area.
The neighbourhood has its own railway station, Avadi Railway Station of the Chennai Suburban Railway. The Heavy Vehicles Factory (HVF) is located in Avadi. Avadi has a lake with the same name.
Major military establishments having divisions in Avadi are the Indian Air Force, Indian Army, Heavy Vehicles Factory (HVF), EFA-Engine Factory, Avadi, Combat Vehicles Research and Development Establishment (CVRDE), Central Reserve Police Force (CRPF), Indian Navy, Central Vehicle Depot (CVD), The Ordnance Depot [OD], Unfit Vehicles Park [UVP] and the Ordnance Clothing Factory (OCF).
According to the 2011 census of India, Avadi had a population of 345,996.