The correct answer is option 2, Hoolock Gibbon.

Let`s go through each option to understand why the other options are not correct:

Option 1: Chimpanzees are not naturally found in India. They are native to the African continent, primarily central and western Africa. Therefore, option 1 is incorrect.

Option 3: Gorillas are also not naturally found in India. They inhabit the forests of central and eastern Africa. Thus, option 3 is incorrect.

Option 4: Orangutans are not native to India either. They are found in the rainforests of Borneo and Sumatra, which are located in Southeast Asia. Hence, option 4 is incorrect.

Now let`s focus on option 2, Hoolock Gibbon. This is the correct answer. Hoolock Gibbons are indeed naturally found in India. They are a species of ape found in the northeastern parts of India, particularly in the states of Assam, Arunachal Pradesh, Meghalaya, and Nagaland. These gibbons are known for their distinctive calls and their ability to swing effortlessly through trees.

In conclusion, the only ape naturally found in India is the Hoolock Gibbon,