Give an account of the Northern Plains of India.

1. The Northern Plains has been formed by three major river system: the Indus, the Ganga and the Brahmaputra along with their tributaries.
2. The plain is formed of alluvial soil brought and deposited by the rivers. This makes this area very fertile.
3. It spreads over an area of 7 lakh sq.km, stretching approximately 2400 km in length and 240 to 320 km in width. It's a densely populated region.
4. Adequate water, favourable climate and fertile soil make the Northern Plains agriculturally very productive.
5. The Northern Plain is broadly divided into three sections:
   1. Punjab Plains — Western part, mostly in Pakistan, formed by the Indus and its tributaries (Jhelum, Chenab, Ravi, Beas, and Satluj) and dominated by doabs.
   2. Ganga Plain — Formed by the Ganga and its tributaries, it extends between Ghaggar and Teesta rivers. It is spread over North India.
   3. Brahmaputra Plain — Formed by the Brahmaputra and its tributaries, it lies in the East particularly in Assam.
6. The Northern Plains can be divided into four regions: bhabar, terai, bhangar and khadar.