This plain can also be divided into two parts. The Northern part that lies in the North of river Krishna is called the Northern Circars. The Southern part is called The Coromandal Coast.
(1) The Northern Circars :
This plain consists of the deltas of Mahanadi, Godavari and Krishna. These rivers have broken the Eastern Ghats at many places and made this plain more wide. The width of the plain in Mahanadi delta is about 150 km. This part gets most of its rainfall in summer.
(2) The Coromandal Coast :
The Eastern Coastal Plain from the delta of river Krishna to Kanya Kumari is called Coromandal Coast. This coast does not get rains from the summer, monsoons. It gets rain in the winter. The Cauvery delta has good irrigation system.
Chennai (Madras) is the most important port of the Coromandal Coast. It is a man made port.