Eastern South Asia region is bounded by Nepal, Sikkim, and Bhutan in the north, Bangladesh in the east, the Indian states of Uttar Pradesh and Chhattisgarh on the west, and the Indian state of Andhra Pradesh in the south. It is connected to the Seven Sister States of Northeast India by the narrow Siliguri Corridor. West Bengal is on the eastern bottleneck of India, stretching from the Himalayas in the north, to the Bay of Bengal in the south. The region lies in the humid-subtropical zone. The landlocked region of Northeast India includes the states of Assam, Arunachal Pradesh, Bihar, Mizoram, Manipur, Meghalaya,
Eastern Himalayan subalpine conifer forests Eastern Himalayan subalpine conifer forests The Eastern Himalayan subalpine conifer forests is a temperate coniferous forests ecoregion which is found in the middle and upper elevations of the eastern Middle Himalayas, in western Nepal, Bhutan and northern Indian states including Arunachal Pradesh. The ecoregion forms a belt of coniferous forest covering from elevation extending from the Gandaki River in Nepal east through Bhutan and into Arunachal Pradesh. It is part of a transition zone from Indomalaya ecozone, in the south, to the Palearctic ecozone, in the north and is the last habitat below the treeline of the Himalayas. The Himalayas