Explanation:

- Karwar: A charming coastal city in Karnataka, resting on India's western coast. Known for its beautiful beaches and the Arabian Sea's gentle embrace.

- Gopalpur: This town has a coastal charm, but it's on the east coast of India, in the state of Odisha, greeting the Bay of Bengal.

- Mangalore: Another vibrant city on India's west coast, nestled in Karnataka. It's famed for its ports and pristine shores.

- Surat: This bustling city is located in Gujarat, along the western coast. It's renowned for its diamond industry and scenic river views.

Correct Answer: Gopalpur