International Trade — Sea Ports & Airports as Gateways

NCERT India: People and Economy — Unit IV, Chapter 8 (Part 2)

8.4 Sea Ports as Gateways of International Trade

Stand on a beach near Mumbai, Vishakhapatnam or Kochi and you will see giant container ships waiting to dock. These vessels are the workhorses of global trade. Roughly 95 per cent of India's foreign trade by volume — and about 70 per cent by value — moves through her sea ports. Water provides a smooth, almost frictionless surface for transport, provided there is no turbulence. India is bestowed with a long coastline of about 7,517 km, surrounded by sea on three sides, and has a long tradition of sea-faring. Many ports historically had place-names suffixed with pattan — a Sanskrit word that simply means ‘port’.

A Quick Historical Detour

Although ports have existed in the subcontinent since ancient times, their emergence as gateways of international trade sharpened only after the arrival of European traders and the British colonial period. The British used Indian ports as suction points for resources flowing out of the hinterlands — raw cotton, indigo, jute, tea and minerals. The extension of railways into the interior linked local markets to regional markets, regional markets to national markets, and national markets to global markets. This pattern continued until 1947.

It was expected that Independence would reverse the colonial pattern, but Partition snatched away two important ports — Karachi went to Pakistan, and Chittagong to East Pakistan (now Bangladesh). To compensate for these losses, two new ports were specifically developed: Kandla in the west and Diamond Harbour near Kolkata on the river Hugli in the east. Despite the setback, Indian ports continued to grow.

Major Ports vs Minor Ports

West Coast Ports — The Arabian Sea Lifeline

1. Deendayal Port (Kandla) — The First Post-Independence Port

Kandla^?, formally renamed Deendayal Port in 2017, is situated at the head of the Gulf of Kuchchh. It was the very first port built after Independence to compensate for the loss of Karachi to Pakistan. Designed as a multi-purpose port, Kandla caters to the needs of western and north-western India and was meant to reduce pressure on Mumbai. It is specially equipped to receive large quantities of petroleum, petroleum products and fertilisers. An offshore terminal at Vadinar was added to handle very large crude carriers.

2. Mumbai — The Busiest Natural Harbour

Mumbai is a natural harbour and the biggest port of the country. Geographically, the port lies closer to the general routes from countries of the Middle East, Mediterranean countries, North Africa, North America and Europe — the very regions where the major share of India's overseas trade is carried out. The port stretches 20 km long and 6–10 km wide with 54 berths, and houses the country's largest oil terminal. Its hinterland covers Madhya Pradesh, Maharashtra, Gujarat, Uttar Pradesh and parts of Rajasthan.

3. Jawaharlal Nehru Port (JNPT) at Nhava Sheva

To relieve the chronic congestion at Mumbai, the Jawaharlal Nehru Port (JNPT)^? was developed as a satellite port at Nhava Sheva on the eastern flank of Mumbai harbour. JNPT is the largest container port in India, handling more than half of India's container traffic. Most large container ships now bypass Mumbai port itself and dock at JNPT, where mechanised cranes and rail-link to the Western Dedicated Freight Corridor make handling fast and cheap.

4. Mormugao — Goa's Iron-Ore Gateway

Mormugao Port lies at the entrance of the Zuari estuary in Goa — another natural harbour. It gained importance after a 1961 remodelling that allowed it to handle iron-ore exports to Japan. The construction of the Konkan Railway has considerably extended the hinterland of this port. Today its hinterland includes Karnataka, Goa and Southern Maharashtra.

5. New Mangalore — Karnataka's Iron-Ore Outlet

New Mangalore Port is located in Karnataka and chiefly caters to the export of iron-ore and iron-concentrates. It also handles fertilisers, petroleum products, edible oils, coffee, tea, wood pulp, yarn, granite stone and molasses. Karnataka is the major hinterland for this port.

6. Cochin (Kochi) — The Queen of the Arabian Sea

Cochin Port is situated at the head of Vembanad Kayal — popularly known as the ‘Queen of the Arabian Sea’ — a natural harbour. Its biggest geographic advantage is its location close to the Suez-Colombo route, which gives ships heading from Europe to South-East Asia a logical refuelling stop. It caters to Kerala, southern Karnataka and south-western Tamil Nadu.

East Coast Ports — The Bay of Bengal Network

7. Chennai — The Oldest, Originally Artificial

Chennai Port^? is one of the oldest ports on the eastern coast. It is an artificial harbour built in 1859 — before that, the coast had only an open roadstead. Chennai is not very suitable for very large ships because of the shallow waters near the coast. Tamil Nadu and Puducherry are its hinterland.

8. Kamarajar (Ennore) — Chennai's Modern Satellite

Kamarajar Port at Ennore, a newly developed port in Tamil Nadu, has been constructed 25 km north of Chennai to relieve the pressure at the Chennai port. It is India's first corporatised major port and handles thermal coal, LNG and dirty cargo that the city port can no longer accept.

9. V.O. Chidambaranar (Tuticorin) — The Southern Pivot

V.O. Chidambaranar Port at Tuticorin was also developed to relieve pressure on Chennai. It deals with a variety of cargo — coal, salt, food grains, edible oils, sugar, chemicals and petroleum products. Its strategic location at the southernmost tip of the East coast makes it a natural pivot for trade with Sri Lanka and Southeast Asia.

10. Visakhapatnam — The Land-Locked Deepwater Harbour

Visakhapatnam Port^? in Andhra Pradesh is a land-locked harbour — connected to the sea by a channel cut through solid rock and sand. An outer harbour has been developed for handling iron-ore, petroleum and general cargo. The Hindustan Shipyard Limited makes Vizag a centre of ship-building too. Andhra Pradesh and Telangana form the main hinterland.

11. Paradip — The Deepest Harbour for Iron-Ore Export

Paradip Port lies in the Mahanadi delta, about 100 km from Cuttack. It boasts the deepest harbour in India, specially suited to handle very large vessels, and was built mainly to export iron-ore. Its hinterland covers Odisha, Chhattisgarh and Jharkhand — precisely the iron-ore belt of eastern India.

12. Haldia — Kolkata's Downstream Bulk Port

Haldia Port lies 105 km downstream from Kolkata, on the Hugli. It was constructed to reduce congestion at Kolkata port. It handles bulk cargo such as iron ore, coal, petroleum, petroleum products and fertilisers, jute, jute products, cotton and cotton yarn.

13. Shyama Prasad Mookerjee (Kolkata) — The Riverine Veteran

The historic Kolkata Port, formally renamed Shyama Prasad Mookerjee Port, lies on the Hugli river, 128 km inland from the Bay of Bengal. Like Mumbai, it was developed by the British and benefited from being the capital of British India. The port has lost its significance considerably on account of the diversion of exports to Visakhapatnam, Paradip and its satellite Haldia. Its biggest geographic problem is silt accumulation in the Hugli — ships have to be carefully scheduled with the tides. Its hinterland covers UP, Bihar, Jharkhand, West Bengal, Sikkim and the north-eastern states. Kolkata also extends port facilities to land-locked Nepal and Bhutan — a service of obvious diplomatic value.

8.5 Airports — Wings of International Trade

While ships move bulk goods cheaply, air transport^? plays an irreplaceable role in moving high-value or perishable goods over long distances in the shortest time. Air freight is costly and unsuitable for heavy bulky commodities, so it carries only a small share of international trade by volume — but a much larger share by value. Diamonds, semiconductors, vaccines, fresh flowers, fashion garments and same-day documents all travel by air.

India's Major International Airports

25 Major Airports & Counting

The Annual Report 2016-17 (Airports Authority of India) listed 25 major airports functioning in the country: Ahmedabad, Bengaluru, Chennai, Delhi, Goa, Guwahati, Hyderabad, Kolkata, Mumbai, Thiruvananthapuram, Srinagar, Jaipur, Calicut, Nagpur, Coimbatore, Cochin, Lucknow, Pune, Chandigarh, Mangaluru, Vishakhapatnam, Indore, Patna, Bhubaneswar and Kannur.

Since 2017, under the UDAN scheme^? (Ude Desh ka Aam Naagrik — “Let the common citizen of the country fly”), a total of 73 unserved or underserved airports, including 9 heliports and 2 water aerodromes, have been operationalised (Source: PIB, Ministry of Civil Aviation, Govt. of India, 2023).

Airports Authority of India (AAI) — What Does It Do?

The Airports Authority of India (AAI), constituted under the AAI Act 1994, is the government body responsible for creating, upgrading, maintaining and managing civil aviation infrastructure in the country. AAI provides air traffic management services over Indian airspace, manages most of the airports (apart from those run under public-private partnership in Delhi, Mumbai, Bengaluru, Hyderabad and Kochi) and operates the Communication-Navigation-Surveillance (CNS) infrastructure.

Specialised Cargo Airports — The High-Value Trade Engine

India has begun developing dedicated cargo airports and air-cargo terminals at major hubs — Mumbai, Delhi, Chennai, Bengaluru and Hyderabad together handle the bulk of perishable, high-value, time-sensitive exports. Cut diamonds, branded garments, electronic chips, vaccines and fresh fish from Kerala fly out of these terminals daily. The proposed cargo airport at Devanahalli (north of Bengaluru) and the new Jewar (Noida) International Airport are examples of dedicated logistics infrastructure.