In addition to the animals in the zoo, the wilderness created in an area of about 400 ha at INP is inhabited by a large number of animals, birds and reptiles. This includes around 180 species of birds of which 65 have been reported to be nesting here. The park is, in fact, a paradise for bird watchers. Moreover, the common venomous and non venomous snakes are abundantly found in the Park. As per the census conducted in 2004 by the Foundation, the wilderness of the park has 545 Nilgai, 475 common langurs and 819 peafowls.