Indian Himalayas

The Indian Himalayan Region (IHR) is the section of the Himalayas within India, spanning the northern states of Jammu and Kashmir, Himachal Pradesh, Uttarakhand, Sikkim, Arunachal Pradesh, as well as the hill regions of two eastern states, Assam and West Bengal. The region is responsible for providing water to a large part of the Indian subcontinent and contains various flora and fauna. The IHR physiographically, starting from the foothills of south (Siwaliks), this mountain range extends up to Tibetan plateau on the north (Trans-Himalaya). Three major geographical entities, the Himadri (greater Himalaya), Himanchal (lesser Himalaya) and the Siwaliks (outer Himalaya) extending almost uninterrupted throughout its length, are separated by major geological fault lines. Mighty but older streams like the Indus, Sutlej, Kali, Kosi and Brahmaputra have cut through steep gorges to escape into the Great Plains and have established their antecedence.