Question

where is eastern and western coastal plains of india in map

Answer 1

Eastern coastal plain of India is located in eastern India from Tamil Nadu to West Bengal which includes Andhra Pradesh, Telangana, Odisha too. 
Western coastal plain of India is located in western India from Kerala to Gujarat which includes Karnataka, Maharashtra too.

Answer 2

Answer:

Explanation:

The Bay of Bengal and the Arabian Sea came into being during the Cretaceous or early Tertiary period after the disintegration of Gondwanaland.

Coastline of India – Indian Coastline

East Coast of India

Lies between the Eastern Ghats and the Bay of Bengal.

It extends from the Ganga delta to Kanniyakumari.

It is marked by deltas of rivers like the Mahanadi, the Godavari, the Krishna and the Cauvery.

Chilka lake and the Pulicat lake (lagoon) are the important geographical features of east coast.