What is the contribution of Mumbai and Goa ports in the economy of India?

What is the contribution of Mumbai and Goa ports in the economy of India?

Answer:
Mumbai is the biggest port with a spacious, natural and well-sheltered harbor. The Jawaharlal Nehru port was planned with a view to decongest the Mumbai port and serve as a hub port for this region.
Marmagao port of Goa is the premier iron ore exporting port of the country. This port accounts for about fifty per cent of India’s iron ore export.