India’s maritime architecture comprises 13 Major Ports and over 200 notified Non-Major (commonly termed Minor or Intermediate) Ports distributed across a 7,516.6 km coastline. While Major Ports fall under the federal jurisdiction of the Union Government, Minor Ports fall under the Concurrent List of the Seventh Schedule of the Constitution of India, managed directly by maritime state governments. Coastal shipping—the transport of cargo and passengers along the domestic coastline—acts as a fuel-efficient, high-capacity alternative to rail and road transport, optimizing the modal split in India’s logistics landscape.
Statutory, Legislative, and Institutional Framework
The administrative, legal, and operational configurations of Minor Ports and coastal shipping operate under specific federal and statutory mandates.
Constitutional and Legal Allocation
- Entry 31 of the Concurrent List: Grants shared legislative authority to both the Central and State Governments regarding ports other than those declared as Major Ports.
- The Indian Ports Act, 1908: Serves as the primary statutory legislation governing the administration, safety, and structural regulation of both Major and Non-Major ports.
- Merchant Shipping Act, 1958: Governs the registration, certification, safety, and operational protocols of coastal vessels, barges, and passenger ferries.
State Maritime Boards
State Maritime Boards are autonomous statutory bodies established by coastal states to oversee the development, licensing, private concessionaire agreements, and environmental clearances of Minor Ports. The Gujarat Maritime Board (GMB), established in 1982, was the pioneer in this domain and serves as the model for other states, including the Maharashtra Maritime Board (MMB) and the Tamil Nadu Maritime Board (TNMB).
Coastal Shipping Policy and Cabotage Laws
Cabotage laws restrict domestic coastal trade exclusively to Indian-registered vessels to protect local shipping industries. To optimize container logistics and encourage transshipment within India, the government relaxed cabotage restrictions, allowing foreign-flagged vessels to transport export-import (EXIM) laden containers and empty containers along coastal routes between Indian ports.
Spatial Distribution and Functional Profile of Prominent Minor Ports
Out of more than 200 notified Non-Major ports, approximately 65 to 70 handle active commercial cargo. Many operate as advanced, deep-draft private or public-private partnership (PPP) terminals that outpace several Major Ports in efficiency.
| Maritime State | Total Notified Minor Ports | Prominent Active Minor Ports | Dominant Cargo Handled / Strategic Characteristic |
| Gujarat | 48 | Mundra, Dahej, Pipavav, Hazira, Sikka, Bedi, Jakhau | Mundra is India’s largest private commercial port (operated by Adani). Sikka handles massive crude oil imports for Reliance Industries’ Jamnagar refinery. Dahej is a premier liquid chemical and LNG terminal. |
| Maharashtra | 48 | Jaigarh, Dighi, Dharamtar, Rewas, Ratnagiri | Jaigarh and Dighi are developed as deep-water direct-berthing private ports. Dharamtar primarily feeds raw materials to coastal steel plants. |
| Goa | 5 | Panaji, Tiracol, Chapora | Chiefly handles inland river barge movement and coastal cruise passenger traffic. |
| Karnataka | 12 | Karwar, Old Mangalore, Belekeri, Malpe | Karwar is an all-weather port situated near the INS Kadamba naval base, handling liquid and dry bulk cargo. |
| Kerala | 17 | Vizhinjam, Azhikkal, Beypore, Kollam | Vizhinjam is a flagship deep-water international transshipment terminal developed under a PPP model, boasting a natural draft of over 18 meters. |
| Tamil Nadu | 17 | Kattupalli, Cuddalore, Nagapattinam, Pambar | Kattupalli is a highly mechanized private container terminal adjacent to Ennore Port. Pambar handles traditional coastal fishing and small-scale cargo vessels. |
| Andhra Pradesh | 15 | Krishnapatnam, Kakinada Deep Water, Gangavaram, Machilipatnam | Krishnapatnam and Gangavaram are deep-draft private ports capable of handling Cape-size bulk vessels carrying coal and iron ore. |
| Odisha | 13 | Dhamra, Gopalpur, Subarnarekha | Dhamra is a high-capacity deep-water port (operated by Adani) that evacuates mineral blocks from the Chota Nagpur hinterland. |
| West Bengal | 1 | Kulpi | Formulated to handle containerized feeder vessels to relieve cargo pressure on the riverine Hooghly docks. |
Coastal Shipping Corridors and Commodity Dynamics
Coastal shipping operates as a critical maritime link connecting resource-producing states directly with high-consumption industrial centers.
Primary Dry Bulk Corridors
- The Thermal Coal Axis: Moves domestic coal from the mines of Odisha, Chhattisgarh, and Jharkhand via the eastern ports of Paradip, Dhamra, and Gangavaram to southern power plants through the ports of Chennai, Tuticorin, and Krishnapatnam.
- The Iron Ore and Limestone Axis: Facilitates the coastal movement of iron ore pellets and limestone from western and eastern mineral belts directly to coastal steel plants in Gujarat and Maharashtra.
Liquid Bulk and Containerized Feeder Networks
- Petroleum Oil and Lubricants (POL) Shuttles: Connects mega-refineries in Gujarat (Jamnagar, Vadinar) to secondary coastal storage hubs in Kerala, Karnataka, and Maharashtra.
- Container Feeder Operations: Smaller coastal vessels aggregate containers from Minor Ports (e.g., Pipavav, Kattupalli) and transport them to primary hub ports (e.g., JNPT, Colombo) for international shipping.
Central Interventions and Infrastructure Schemes
The Ministry of Ports, Shipping and Waterways implements targeted policy initiatives to leverage the geographic advantages of minor ports and coastal waters.
Sagarmala Programme: Coastal Shipping Pillar
Under the Sagarmala project, a specific component focuses on “Port Connectivity and Coastal Shipping Optimization.” This includes providing capital financial assistance to state governments for constructing dedicated coastal berths, passenger jetty terminals, and breakwater structures at Minor Ports to ensure smooth handling of domestic vessels.
Coastal Berth Scheme
Provides financial assistance to create dedicated infrastructure for cargo and passengers at ports. This funding helps lower port charges for coastal vessels, making coastal shipping financially competitive with subsidized rail freight.
Green Planet Initiative and Green Tug Transition Programme (GTTP)
Aims to convert conventional port craft into eco-friendly vessels. The program mandates that major and prominent minor ports transition their towing and mooring tugs to hybrid, electric, or alternative fuel systems (such as methanol or green hydrogen) to reduce port-side emissions.
Roll-on/Roll-off (Ro-Ro) and Passenger Ferry Services
Focuses on bypassing congested land highways by deploying specialized vessels that carry wheeled cargo (trucks, cars) and passengers across maritime gulfs and estuaries. Notable operational corridors include the Ghogha–Hazira Ro-Pax ferry service across the Gulf of Khambhat in Gujarat, which reduced travel distance from 400 km by road to 30 km by sea, and the Mumbai–Mandwa Ro-Pax service in Maharashtra.
Geographic, Technical, and Operational Challenges
Expanding the share of minor ports and coastal shipping faces several physical geography and infrastructure constraints.
Siltation and Draft Restrictions at Minor Ports
Unlike major deep-water installations, many Minor Ports are situated along shallow river mouths, creeks, or tidal estuaries. These locations experience continuous siltation from river discharges and longshore drift, requiring regular maintenance dredging. Without continuous dredging, these ports cannot maintain the required draft depth of 8 to 10 meters needed for standard coastal vessels.
Return-Cargo Disparity (The Asymmetry Problem)
Coastal shipping routes face a significant trade imbalance. While vessels moving from eastern India to western India travel fully loaded with bulk commodities like coal, iron ore, and cement, they often lack sufficient return cargo (such as manufactured goods) heading east. This imbalance forces ships to sail back empty or under-loaded, which drives up overall operational costs.
Last-Mile Rail and Road Connectivity
Several minor ports lack high-capacity broad-gauge railway links or multi-lane national highway connectivity to their immediate inland markets. This infrastructural gap creates bottlenecks during cargo evacuation, increasing secondary handling costs and diminishing the cost-effectiveness achieved during ocean transit.
Severe Weather Vulnerability
The Bay of Bengal and the Arabian Sea experience seasonal tropical cyclones, particularly during the pre-monsoon (April-May) and post-monsoon (October-November) periods. Minor ports often lack massive concrete breakwaters, making their open anchorages and finger jetties vulnerable to storm surges and high wave energy, which frequently forces ports to halt cargo operations.
Essential Geography Facts and Trivia for UPSC Prelims
- Largest Private Minor Port: Mundra Port in Gujarat is India’s largest commercial port by cargo volume handled, outperforming most public Major Ports.
- First Private Port under BOOT Model: Pipavav Port in Gujarat was the first port developed in India under a Public-Private Partnership model using a Build-Own-Operate-Transfer (BOOT) framework.
- Deepest Natural Draft Minor Port: The Vizhinjam International Transshipment Deepwater Multipurpose Seaport in Kerala features a natural deep draft of 18 to 24 meters close to the shoreline, requiring minimal maintenance dredging and allowing it to dock ultra-large container ships.
- The Model Maritime State: Gujarat handles over 70% of the total cargo managed by all Non-Major ports across India, driven by its long coastline, indented gulf topography, and proactive maritime board policies.
- The Twin Coastal Gulfs: The Gulf of Kutch and the Gulf of Khambhat in Gujarat serve as critical geographic focus areas for India’s minor port density, hosting major industrial hubs like Dahej, Hazira, and Mundra due to their protected waters and deep tidal ranges.