Which one of the following ports is located on estuary?

Marmagao port, located in Goa, is situated at the entrance of the Zuari estuary [3]. It is a major natural harbour on the west coast of India and serves as a leading seaport for iron-ore exports [3]. In contrast, Kandla is a tidal port located at the head of the Gulf of Kutch [5]. Kolkata is a riverine port situated on the Hooghly river, while its satellite port, Haldia, is located downstream along the coast of the Bay of Bengal [4]. Tuticorin (Thoothukudi) is a major port located on the Coromandel Coast in Tamil Nadu, primarily known as a natural harbour in the Gulf of Mannar. Therefore, among the given options, Marmagao is the one specifically identified as being located on an estuary [2].

Sources

1. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 12: Transport, Communications and Trade > Ports > p. 20
2. [3] INDIA PEOPLE AND ECONOMY, TEXTBOOK IN GEOGRAPHY FOR CLASS XII (NCERT 2025 ed.) > Chapter 8: International Trade > Can you find out the reasons for the variations in the location of ports along the two coasts? > p. 90
3. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 32: Ocean Movements Ocean Currents And Tides > Explanation: > p. 508
4. [5] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 12: Transport, Communications and Trade > Ports > p. 19
5. [4] INDIA PEOPLE AND ECONOMY, TEXTBOOK IN GEOGRAPHY FOR CLASS XII (NCERT 2025 ed.) > Chapter 8: International Trade > Can you find out the reasons for the variations in the location of ports along the two coasts? > p. 92