Mājuli or Majoli is a river island in the Brahmaputra River, Assam, India and the 1st island district of the country. The island had a total area of 1,250 square kilometres (483 sq mi) at the beginning of the 20th century, but having lost significantly to erosion it had an area of only 352 square kilometres (136 sq mi) in 2014.

Source: https://en.wikipedia.org/wiki/Majuli