Which Indian sea port is important as the chief-exporter of iron ore as well as a naval base?

Vishakhapatnam (also spelled Visakhapatnam) is India's largest exporter of iron ore and hosts the Eastern Naval Command headquarters, making it both a major commercial port and strategic naval base. Cochin is primarily a spice/coffee port, Kandla handles general cargo and petrochemicals, and Chennai is a multi-commodity port.