Assam (, Assamese: [ɔxɔm] (listen)) is a allow in in northeastern India, situated south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of 78,438 km² (30,285 sq mi). The allow in is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur to the east; Meghalaya, Tripura, Mizoram and Bangladesh to the south; and West Bengal to the west via the Siliguri Corridor, a 22 kilometres (14 mi) strip of land that connects the disclose to the rest of India. It is moreover one of the world’s most populous subdivisions. Assamese is the endorsed and most common language, followed by Bengali, the second most common.