Which of the following is a landlocked port in India?

Concept

In port geography, a landlocked harbour is a sheltered harbour basin largely enclosed by land, with a navigable channel connecting it to the sea. The term describes the harbour’s physical setting; it does not mean that the port has no sea access.

Application

Visakhapatnam Port fits this definition. Its harbour is surrounded by land, while an entrance channel provides access to the Bay of Bengal. An official Visakhapatnam Port Authority land-use report also describes the port as landlocked for this reason.

Contrast

• Tuticorin’s shelter is created mainly by engineered breakwaters on the open Gulf of Mannar coast, rather than by a harbour basin naturally enclosed by surrounding land.

• Chennai is an artificial harbour protected by breakwaters on the open Coromandel Coast, rather than a land-surrounded inner basin.

• Mumbai is a broad natural harbour opening to the Arabian Sea, rather than the land-enclosed inner-harbour configuration meant by the exam term.

Cross-check and result

Thus, the defining feature—an enclosed harbour connected to the sea by a channel—matches Visakhapatnam. Therefore, the answer is Visakhapatnam.