Concept:
- A port grows where a productive hinterland meets a suitable coast, so the goods produced behind a port explain why it exists.
- Odisha is a leading mineral state, which tells us what kind of port it needs.
Step 1: Look at what lies behind the Odisha coast.
Odisha and the neighbouring parts of Jharkhand and Chhattisgarh form one of the richest mineral belts of the country, producing large quantities of iron ore. Such heavy cargo needs a deep water port for export.
Step 2: Name the port that serves it.
That port is
Paradip, developed on the eastern coast of Odisha to handle bulk mineral traffic.
Step 3: Confirm with the trade it carries.
Paradip handles the largest share of iron ore exports among the eastern ports, and also deals in coal, fertiliser and petroleum products. This matches exactly what the hinterland produces.
Step 4: Fix the location for map work.
Mark it on the coast of Odisha facing the Bay of Bengal, close to the delta of the Mahanadi.
Final Answer: The major sea port in Odisha is Paradip.