Write short notes on Northern Plains of India.

Located at the south of the Himalayas, The Northern Plains are formed by the deposits of Indus, the Ganga and the Brahmaputra rivers. Extending over a length of 2400 km with an area of over 7 lakh sq.km formed after the creation of the Himalayas where its rivers brought down sediments and fertile soil which later became its constituents which included features such as Bhabar (unasserted sediments), Terrain (marshy tracks), Bhangar (older alluvium) and Khadar (newer alluvium), because to its huge area and different characteristics of the soil it was further divided into 4 parts. The first is The Rajasthan Plain which is located in the Aravalli range extending for about 640kms with an average width of about 300kms. These cover western Rajasthan where two-third of this region is desert. Second is The Punjab Haryana plain, located in the north-east of the Great Indian Desert extending over 640kms from north-east to south-west and about 300kms from west to east. Third is The Ganga plain, the largest plain extending from The Yamuna River in the west to the Bangladesh in the east. Extending over 1500kms with an average width of 300kms covering the states of Uttar Pradesh, Bihar and West Bengal. And finally the fourth is The Brahmaputra plain originating in Tibet which is locally known out there as ‘Tsangpo’ which consists of large marshy tracts containing alluvial fans leading to the formation of ‘Terrai’.