The director is also the member secretary of the Zoo Authority of Tamil Nadu (formed under Tamil Nadu Society Act), which started functioning from 1 April 2005, and comprises the following members: The Government of Tamil Nadu provides funds for paying the zoo staff and maintenance of zoo vehicles.
Other expenditures, such as maintenance of animal enclosures, feed for animals, animal health care, maintenance of zoo, drainage, water, electricity and maintenance of battery-operated vehicles, are met from the income generated by the zoo, chiefly by means of the entry fee.
The main objectives of the park are ex-situ propagation of critically endangered species to prevent their extinction, wildlife education and interpretation aimed at a wider public appreciation of wildlife, and wildlife research to promote wildlife conservation and management.
The overall management of the zoo is vested in the director of the park.
The park is located at Vandalur in the south-western part of the Chennai Metropolitan Area, about 6 kilometres (3.7 mi) from Tambaram, 4 km from Mudichur 4 kilometres (2.5 mi) and about 15 kilometres (9.3 mi) from Chennai Airport.It is affiliated with the Central Zoo Authority of India.Spread over an area of 602 hectares (1,490 acres), including a 92.45-hectare (228.4-acre) rescue and rehabilitation centre, the park is the largest zoological park in India.Income is also generated from battery-operated vehicle (BOV) charges, elephant rides, toilets lease, bicycle charges from TI cycles, the leased parking area and food and beverages outlets such as Hotel Tamil Nadu, Aavin, and TANTEA.