Correct Answer - Option 3 : the Brahmaputra River
Majuli is a river island in the Brahmaputra River, Assam and in 2016 it became the first island to be made a district in India.
- Majuli is purely a region of fluvial geomorphology. It rises from the Brahmaputra basin and in course of time turned into a flat-level alluvial plain.
- The geomorphology of this region is directly related to its physiographic characteristics. The island is bounded by the river Subanisri and her tributaries Ranganadi, Dikrong, Dubla, Chici, and Tuni on the Northwest, the kherkatia Suli ( a spill channel of the river Brahmaputra) in the northeast and the main Brahmaputra River on the South and the Southwest.
- These tributaries usually bring flashy floods with a heavy load of fine silt and clayey sediments. They has also very steep slopes, shallow braided shifting channels, and had a course of sandy beds.
- The island of Majuli today houses a total of 243 small and large villages.
- Of the total land area of Majuli, only 32237.16 hectares were found suitable for cultivation.
Hence, it is clear that the world’s largest river island ‘Majuli’ is located in the Brahmaputra River.
