area of and has an average elevation of . Lake Avadi has a lake called Paruthipattu Lake. Spread over 200 acres and in length, the lake is located away from the city, behind the Tamil Nadu Housing Board (TNHB) and Thirumullaivoyal. It was once a source of water for farmland irrigation. The body of water attracts many birds throughout the year. However, in the recent decades it has lost most of its area to indiscriminate building and encroachment. The Paruthippattu Lake area was renovated with a budget of 32 crores and converted into an eco-park that officially opened on 19 June 2019. The renovation added recreational facilities, a 3-km-long walking track, a central plaza and various greenery, while addressing the issues of encroachment and sewage pollution that had affected the once-neglected lake. Waste management The neighborhood generates about 150 metric tonnes of garbage daily. Together with Thiruninravur and Poonamallee, Avadi generates about 210 metric tonnes of solid waste from around 120,000 households, which is dumped on a 17.78-acre site in Sekkadu, owned by the Avadi Municipal Corporation. In 2017, the municipal corporation planned to construct 33 decentralized compost processing plants at a cost of 109.6 million, each with a capacity to convert 4 tonnes of biodegradable waste into manure. Of these, 17 plants were operational as of February 2018. IT Parks and Companies IT Park A new Tidel Park, with a built-up area of 5,57,000 square feet, will be built on a 10-acre land at a cost of 2,300 million at Avadi–Pattabiram on MTH Road. This is expected to provide jobs for 30,000 people. The Construction work started in August 2020. Dell Technology and Tata Consultancy Service (TCS) have shown interest to move to Avadi. iDEX a Central Government IT Company for Defence export is expected to invest 1000 crores in Tidel Park Avadi - Pattabiram. In addition to military establishments, Avadi also houses a number of IT/ITES and other service sector-based firms. Defence Industrial Corridor The major defence establishments with divisions in Avadi are the Indian Air Force, Indian Army, Heavy Vehicles Factory (HVF), EFA-Engine Factory, 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). The Indian Air Force has a Mechanical Transport Training Institute Technical (MTTI) here for training its personnel on driving and repairing