Indian Ocean Diplomacy: Geopolitics & Security

Indian Ocean Diplomacy: Geopolitics & Security

The Indian Ocean Region (IOR) is the world’s most contested maritime space in the 21st century. Home to critical chokepoints carrying 80% of global oil trade, it sits at the intersection of great-power competition between India, China, and the United States. For UPSC, Indian Ocean diplomacy is a high-yield topic that spans GS-II (International Relations) and GS-III (Security) — covering maritime strategy, multilateral forums, and India’s evolving role as a net security provider.

Why the Indian Ocean Matters Geopolitically

The Indian Ocean connects three continents and carries the trade lifelines of the global economy. Control over its sea lanes determines access to energy, raw materials, and markets.

Strategic Significance in Numbers

The Persian Gulf alone holds about 48% of proven global oil reserves, and virtually all of it must transit through Indian Ocean chokepoints to reach consumers in Asia and Europe.

Great Power Competition in the Indian Ocean

India’s Position

India’s geographic centrality gives it a natural advantage. The Deccan Peninsula projects 1,600 km into the Indian Ocean, providing India a 7,516 km coastline and island territories (Andaman & Nicobar, Lakshadweep) that straddle major sea lanes.

India’s strategic doctrine has evolved from a defensive, continental orientation to an increasingly maritime posture. The 2015 Indian Maritime Security Strategy — titled “Ensuring Secure Seas” — defines India’s areas of maritime interest extending from the Persian Gulf to the Strait of Malacca and from the East African coast to the approaches of the South China Sea.

China’s Expanding Presence

China’s presence in the Indian Ocean has grown rapidly since the 2000s, driven by:

• String of Pearls — network of Chinese-funded ports and facilities around the IOR
• Belt and Road Initiative (BRI) — includes the Maritime Silk Road through the Indian Ocean
• PLA Navy — established its first overseas military base in Djibouti (2017)
• Debt-trap diplomacy — strategic ports acquired through unsustainable lending (Hambantota model)

The String of Pearls: Key Nodes

United States’ Strategy

The US maintains its largest forward-deployed naval presence in the Indian Ocean through the 5th Fleet headquartered in Bahrain and the base at Diego Garcia (British Indian Ocean Territory). The US conceptualised the Indo-Pacific framework to counter China, linking the Indian Ocean strategy with Pacific theatre operations.

India’s Maritime Strategy Frameworks

SAGAR (Security and Growth for All in the Region)

Articulated by Prime Minister Modi in 2015 during a visit to Mauritius, SAGAR outlines India’s vision for cooperative maritime governance. Its pillars include:

1. Safeguarding India’s maritime territory and interests
2. Deepening economic and security cooperation with maritime neighbours
3. Collective action for peace and security
4. Cooperative management of ocean resources
5. Capacity building and disaster response collaboration

Indo-Pacific Oceans Initiative (IPOI)

Proposed by India at the East Asia Summit in 2019, IPOI focuses on seven pillars: maritime security, maritime ecology, maritime resources, capacity building, disaster risk reduction, technology cooperation, and trade connectivity. Each pillar has a “champion country” — India leads maritime security, Australia leads maritime ecology.

Net Security Provider

India positions itself as the “preferred security partner” and “first responder” in the IOR. This translates into:

• Humanitarian assistance and disaster relief (HADR) — India was the first responder during the 2004 Tsunami, Cyclone Idai (Mozambique), and COVID-19 vaccine distribution
• Anti-piracy operations — continuous Indian Navy deployment in the Gulf of Aden since 2008
• Hydrographic surveys — for island neighbours like Mauritius, Seychelles, and Maldives
• Maritime domain awareness — sharing real-time shipping data through the Information Fusion Centre (IFC-IOR) at Gurugram

Multilateral Maritime Frameworks

QUAD (Quadrilateral Security Dialogue)

The QUAD — comprising India, the US, Japan, and Australia — is the most significant minilateral in the Indo-Pacific. While not a military alliance, it increasingly coordinates on maritime security, supply chains, technology, and climate.

QUAD maritime initiatives:

• Indo-Pacific Maritime Domain Awareness (IPMDA) — satellite-based vessel tracking
• QUAD fellowship for STEM students
• Vaccine diplomacy through QUAD partnership
• Critical and emerging technology cooperation

Indian Ocean Rim Association (IORA)

IORA has 23 member states and 11 dialogue partners. It focuses on maritime safety, trade facilitation, fisheries management, disaster risk reduction, and academic cooperation. India has been a founding member since 1997.

Indian Ocean Naval Symposium (IONS)

Founded in 2008 on India’s initiative, IONS brings together navies of 25 Indian Ocean littoral states for dialogue and cooperation. It organises the biennial MILAN exercise hosted by India at Port Blair.

Other Key Forums

India’s Island and Base Strategy

India’s island territories — the Andaman & Nicobar Islands (ANI) and Lakshadweep — are strategic assets of the first order.

Andaman & Nicobar Islands

Located just 90 km from Indonesia’s Sumatra, the ANI chain guards the western approach to the Strait of Malacca. India established the Andaman and Nicobar Command in 2001 — its only tri-service theatre command. Recent developments include:

• INS Kohassa — naval air station in Shibpur
• INS Baaz — India’s southernmost air base at Campbell Bay
• Expansion of Port Blair as a forward operating base
• Plans for a container transshipment terminal at Car Nicobar

Lakshadweep

Located in the Arabian Sea, Lakshadweep sits astride sea lanes connecting the Persian Gulf to Southeast Asia. INS Dweeprakshak at Kavaratti serves as a base for monitoring the western Arabian Sea.

Overseas Access and Facilities

India doesn’t maintain overseas military bases in the traditional sense but has negotiated access arrangements:

Maritime Security Challenges

Piracy and Armed Robbery

While Somali piracy has declined since its 2011 peak (due to international naval patrols), armed robbery at sea remains a concern. The 2024 Houthi attacks on shipping in the Red Sea and Gulf of Aden created a new dimension of maritime insecurity affecting Indian Ocean trade.

Illegal, Unreported, and Unregulated (IUU) Fishing

IUU fishing depletes fish stocks on which millions of coastal communities depend. China’s distant-water fishing fleet — the world’s largest — operates extensively in the Indian Ocean, often in the exclusive economic zones of African and South Asian nations.

Maritime Terrorism

The 2008 Mumbai attacks demonstrated the vulnerability of India’s coastline to sea-borne terrorism. Post-2008 reforms include the establishment of the National Committee for Strengthening Maritime and Coastal Security (NCSMCS) and coastal radar chains.

Drug Trafficking

The “southern route” for Afghan heroin — through the western Indian Ocean to East Africa and beyond — represents a significant narcotics trafficking corridor. Indian and regional navies regularly intercept drug-laden dhows in the Arabian Sea.

India’s Blue Economy Vision

Beyond security, India’s Indian Ocean diplomacy increasingly focuses on the blue economy — sustainable use of ocean resources for economic growth.

Key Dimensions

• Deep Ocean Mission — Rs 4,077 crore programme for deep-sea exploration, including the Samudrayaan manned submersible
• Sagarmala Programme — port-led development leveraging India’s coastline
• Polymetallic Nodule Mining — India holds exploration rights in the Central Indian Ocean Basin (75,000 sq km)
• Marine Biotechnology — research into pharmaceuticals, enzymes, and biofuels from marine organisms

Indian Ocean: Geography, Significance & UPSC Notes Major Ports of India: Complete List & Map

India vs China: Indian Ocean Comparison

Frequently Asked Questions