Coastal Plain (Plains along the Sea Coast):
The Peninsular Plateau is surrounded by coastal plains from Kachchh in the west to Odisha in the east. These coastal plains are divided into
- West coast plain and
- East coast plain.
West Coast Plain:
- The west coast plain is spread from Gujarat in the west to Kerala in south.
- The entire plain is in the form of a narrow belt except in Gujarat.
- This plain is very undulating.
- In north, it is known as Konkan Coast, while it is known as Malabar Coast from Goa to the southern end of the plain.
- Most of the rivers of the West Coast Plain have formed creeks and estuaries at their mouths.
- Many natural harbours (ports) such as Mumbai, Marmagao, etc. are situated on this coast.
- Also, backwaters have developed along the southern coast of Kerala. These are known as ‘Kayak in local language.
East Coast Plain:
- East coast plain is much broader than the west coast plain.
- Large amount of alluvial deposit is found in the deltas of river Kaveri, Krishna, Godavari and Mahanadi.
- The northern part of this plain is known as Northern Circle.
- The southern part of East Coast Plain which covers Tamil Nadu coast is known Coromandel Coast.