Besides the Nilgiri Tahr, the prestigious inhabitant of the park is Atlas Moth (Attacus atlas), which has the largest surface area of wings among all moths.
Twenty-six species of mammals have been identified in the park. Besides the Nilgiri Tahr, the ungulates in the park include Gaur, Indian Muntjac and Sambar Deer. The predators include Golden Jackal, Jungle Cat, Wild Dog, Dhole, Leopard and tiger. Nilgiri Langur, Stripe-necked Mongoose, Indian Porcupine, Nilgiri Marten, Small Clawed Otter, Ruddy Mongoose, and Dusky Striped Squirrel are also among the inhabitants of the park.
Nilgiri Marten, Small Clawed Otter, Ruddy Mongoose, Small Indian Civet and Macaques can also be spotted in the park. Elephant presence inside the park is seasonal and tigers and leopards are also present though very few in numbers.
A new species of frog named Raorchestes Resplendens, which is on the brink of extinction, was also discovered in the park.