The foothills and floodplains to the south of the Eastern Himalayas are widely known as Dooars and the region is generally famous for its dense forest area. The word "dooar" or "duar" means door in the local languages. It is named so because this area works as a corridor or gateway towards Bhutan and the north-eastern past of India. Not only humans, but the Asian elephants use this region as a corridor to travel between Bhutan and India. From the plains of Darjeeling district, the upper region of Coochbehar district and the whole Jalpaiguri and Alipurduar districts of West Bengal to the Assamese districts of Dhubri, Kokrajhar, Barpeta, Goalpara and Bongaigaon -Dooars covers it all. The region is elevated from 90 m to 1750 m above the sea level. And the rich diversity is not only seen in flora and fauna, but also in the tribes, their cultures, dresses, lifestyle and food. Rivers like Teesta, Torsha, Raidak, Sankosh, Jaldhaka etc. fertile this region constantly.