The Carnivores are led by a group of our own Indian Lions in the spacious 32 acres "Safari Park" followed by Tigers,African Lions, Panthers, Jaguar,Puma, Wolves,Jackal,Foxes and Hyenas,Bears include in the collection of the common sloth Himalayan black Bear and Malayan Sun Bear.

The Deer family includes the rare Manipur Deer, Samber,Cheetal, Hog Deer etc., The antelopes are lead by Nilgai, Black buck, Four-horned antelope,Chinkara etc.

the bigger mammals includes a group of Indian elephants in large spacious open enclosures, Indian Rhinos a group of Hippos all in spacious open enclosures. Also exhibited in large open enclosures are Indian wild-asses.

The reptiles are represented by all three species of Indian Crocodiles i,e. the Muggar, Gharial and the Salt water Crocodiles. Also exhibited are the Monitor Lizards and variety of snakes. A pair of Giant Tortoises are exhibited alongwith a number of small Indian Tortoises.

Nocturnal animals are the animals that are active in the night going about their daily tasks of digging or borrowing or hunting for food and spend the day lying asleep in the burrows or nests. These nocturnal animals when kept for public display in normal enclosures or cages are unattractive to the visitors as they are generally found inactive or lying curled up in a corner. To make the nocturnal animals active during the daytime for the benefit of visitors, the wake-sleep cycle of the animals is reversed by simulated night condition, inducing the night time activities in the animals. In this connection special arrangements are made to change the time of day gradually, that is from daylight to dark and dusk to dawn, so that the animals are conditioned to the change of biorhythm in their routine life. A modern cave has been constructed to exhibit the nocturnal animals in such a way that people have a feeling as if they are going through a tunnel and see the animals in their natural habitat without causing any disturbance in "The Moonlit Zoo".

The Nocturnal animals that are displayed at present are:- Slender Lorises, Slow Lorises, Leopard Cats, Large Indian Civets, Small Indian Civets, Palm Civets, Ratels, Hedge hogs, Flying Foxes, Fruit Bats, Indian Porcupines, Brush Tailed Porcupines, Great Horned Owls, Fishing Owls, Mottled Wood Owls, Barn Owls.

Besides the above a number of other species like NightJars, Jungle Cats, Mouse Deer etc., are also proposed to be kept. This project is the first of its kind in India and adds to another first for the Nehru Zoological Park, Hyderabad. It will be useful for study of biological rhythm of these animals, which was not possible until now. This will help in study of biorhythms in other species including humans. The feeding behavior of these animals will also be studied. The food is nocturnal prey species like rats, mice etc., which destroy grains of human beings.

A list of animals in the Zoo as dated on 31-03-2006 is furnished in their species web pages and abstract of the list furnished  hereunder.  However the animal collection is getting adversely affected with the ageing of the Animals and Birds.  Some of the rare animals that have bred during the current year are Asiatic Lion, Gaur, Himalayan Black Bear, Swamp Deer, White Necked Stork, Mouse Deer, Silver Pheasants, Ring Necked Pheasants, Golden Pheasants,  Swamp Deer, Jaguar, Tiger, Sambar, White Ibis, Painted Storks, Red Lory, Rainbow lory, Cockatiels, Nicobar pigeon, Love Birds, Budgerigars, etc. Additions to the animal collection are Mouse deer, Indian fox, Water monitor lizard, Malayan Sun Bears, etc. The total collection of birds and animals in the Zoo is  1533 nos.