Difference between northern plains and coastal plains.

Northern plains lie in the south of Himalayas Mountains and north of Deccan plateau. It is formed by flooding of three major rivers- Indus, Ganga and Brahmaputra. It is drained by many other rivers like Yamuna, Ghaghara, Gandak etc. These are perennial rivers which flow throughout the year which helps the plains maintain their fertility. It has the largest tract of 3200 km of alluvial soil in the world. The soil of these plains is very fertile. Many people live here who are dependent on agriculture for livelihood.

There are two coastal plains in India- Eastern Coastal Plains and Western Coastal Plains. Eastern Coastal Plains stretches from Mahanadi valley in the north to Nilgiri hills in the south. Eastern Coastal Plains are divided into two parts -Northern Circar and Coromandel Coast and Western Coastal Plains are divided into three parts- Konkan Coast, Karnataka Coast and Malabar Coast. Eastern Coastal Plains are discontinuous plains which are dissected by the rivers flowing in the east whereas Western Coastal Plains are continuous plains. Eastern and Western Coastal Plains experience a high level of humidity. Therefore, the average rainfall in coastal plains is 1000mm to 3000mm.