The Eastern Coastal Plains is a stretch of landmass lying between the eastern part of the Deccan Plateau and the Bay of Bengal in India. The plains stretch from the Mahanadi delta to Kaniyakumari at the southern tip of the Indian peninsula with the Eastern Ghats forming its rough western boundary. It is wider and leveled than the Western Coastal Plains and traverses the states of Odisha, Andhra Pradesh, and Tamil Nadu.

The plains are broadly divided into three subdivisions–Utkal Plains in the north, Andhra plains in the center, and Tamil Nadu plains in the south. The plains are fertile as it forms part of the deltas of major peninsular rivers such as Godavari, Krishna, Mahanadi, and Kaveri.

Geography

The Eastern Coastal Plains is a stretch of coastal land lying between the eastern edge of the Deccan Plateau and the Bay of Bengal in the west. The disjointed mountain range of Eastern Ghats forms a rough western boundary of the plains. The plains stretch from the Mahanadi delta to Kaniyakumari at the southern tip of the Indian peninsula and traverses the states of Odisha, Andhra Pradesh, Tamil Nadu and the union territory of Puducherry. It is wider and leveled than the Western Coastal Plains and both the coastal plains meet at Kaniyakumari.

The average width of the plains vary between with an average width of . The deltas have advanced towards the Bay of Bengal, which has pushed the Kolleru Lake inwards. The Pulicat Lake is interrupted by a sand spit which forms the island of Sriharikota.

Tamil Nadu plains

The Tamil Nadu Plains (Coromandel) stretches for from the south of Pulicat Lake to Kanniyakumari at the southern end of the Indian peninsula. The average width is about with the plains widest at the Kaveri delta at .