The tropical rain forest in India comprises Arunachal Pradesh, Assam, Meghalaya, Nagaland, Tripura, Western ghats, West Bengal and Andaman and Nicobar Islands, which receive heavy rainfall. These areas are covered with evergreen forests. The thick, dense and rich environment is capable of providing food and shelter to a host of animals of all kinds-the ground dwellers as well as tree dwellers.

However, increasing population, hunting and encroachments has resulted in the destruction of India's forest lands. Today, the north eastern states of India have become the only region where the rainforest wealth of India survives, but for how long, that's a big question.

The rainforests of the northeast state of Assam are facing fast depletion due to ignorance and negligence of the state authorities and the community people, residing within the forest areas. In a recent survey, it has been discovered that there is a continuous stretch of 800-sq-kms of virgin rainforests in upper Assam that spills over to Arunachal Pradesh is present in the Northeastern region of India.

The newly created Joydihing wildlife sanctuary comprises the Joypur reserve forest, Dirak reserve forest and Dihing reserve forest. It houses 32 species of mammals, more than 300 species of birds and several other rare and endemic wild species. A critical aspect of this forest zone is that of the 15 species of non-human primates found in India, seven inhabit in this belt. They include Rhesus Macaque, Assamese Macaque, and slow Loris, capped Langurs, pig-tailed Macaque, stam-tailed Macaque and Hoolock Gibbons. This rainforest stretch is also one of the largest elephant zones in India, through which more than 2,000 elephants migrate to Arunachal Pradesh every year.