Lying on the southern part of the Himalayas' outer foothills and northern part of the Brahmaputra River Basin, these alluvial floodplains in eastern-northeastern India are famous with Dooarsor Duars, which means "doors" in Bengali, Assamese, Magahi, Bhojpuri, and Maithili languages. This place is famous for having 18 gateways and passages between the plains in India and the hills in Bhutan. Years ago, the Kamata Kingdom under Koch Dynasty ruled the Dooars. When Koch kingdom's weakness led to Kamatad Kingdom's advantage, Dooars came under the possession of Bhutan. Later in 1865, when under Captain HedayatAli, the British annexed it after Bhutan War and ultimately resulted in Bhutan Kingdom's control over the region. In 1947, with the end of British rule in India, the Dooars agreed to be in the treaty of the dominance of India. Shortly after 1949, the Union of India merged Dooars into it