Trap: Confusing the Indian Navy (blue-water military force, under Ministry of Defence) with the Indian Coast Guard (multi-role maritime law enforcement, under Ministry of Defence since 2019 — earlier it was under the Ministry of Home Affairs for policing functions). The Coast Guard is NOT a part of the Navy.
Most confused: The difference between 'territorial waters' (12 nautical miles from baseline — full sovereignty), 'Contiguous Zone' (24 nm — limited enforcement), 'Exclusive Economic Zone' (200 nm — sovereign rights over resources), and 'Continental Shelf' (up to 350 nm — seabed resource rights). Prelims often tests these UNCLOS definitions.
Key anchor: India's maritime strategy rests on the Indian Navy's transformation from a coastal defence force (1950s-1990s) to a blue-water navy capable of power projection across the IOR (2000s onwards), marked by the induction of aircraft carriers, nuclear submarines, and the 'Make in India' warship building programme.
Current affairs hook: INS Vikrant (India's first indigenous aircraft carrier) full operationalisation; the induction of INS Vaghsheer (Kalvari-class submarine); the SAGAR initiative expansion; the Maldives-India-China maritime competition; and the expansion of the Andaman & Nicobar Command.
Mains hinge: Maritime security questions require linking security (threats) with strategy (response). Show the transition from a 'continental mindset' (focusing on land borders) to a 'maritime mindset' (recognising the Indian Ocean as India's strategic backyard).
Core Concept
India's maritime domain is vast and strategic. With a 7,516 km coastline, 1,382 islands, and an Exclusive Economic Zone (EEZ) of over 2 million square kilometres, India has immense maritime interests. The Indian Navy and the Indian Coast Guard are the two principal agencies safeguarding these interests, operating in an increasingly contested Indian Ocean Region (IOR) where China's naval expansion is the dominant strategic challenge.
The Indian Navy: From Coastal Defence to Blue-Water Force
The Indian Navy's evolution can be divided into three phases:
(1) Brown-water phase (1947-1990s): After independence, the Navy was a modest coastal defence force focused on protecting India's coastline. The acquisition of INS Vikrant (ex-HMS Hercules, 1957) gave India its first aircraft carrier, but the Navy remained limited in reach and capability. The 1971 Indo-Pak war was the Navy's finest hour — Operation Trident (missile attack on Karachi harbour) and Operation Python demonstrated the Navy's offensive capability. But through the 1980s and 1990s, funding constraints and a 'continental bias' limited naval modernisation.
(2) Blue-water transformation (1998-2014): The 1998 nuclear tests and the subsequent sanctions paradoxically catalysed indigenous naval shipbuilding. The induction of INS Delhi (1997, first indigenously built destroyer), the INS Kolkata-class destroyers, and the INS Shivalik-class stealth frigates marked a shift. The Navy acquired nuclear-propelled submarines (INS Chakra, leased from Russia in 2012) and developed the Arihant-class ballistic missile nuclear submarines (SSBN). The 2008 Mumbai attacks revealed a maritime terrorism vulnerability, leading to enhanced coastal security architecture.
(3) Blue-water consolidation (2014-present): The current phase is characterised by indigenous aircraft carrier capability (INS Vikrant, commissioned 2022), the raising of the Navy's submarine fleet (Kalvari-class and the Arihant-class), and a 'Make in India' shipbuilding programme (over 60 ships on order, most in Indian shipyards). The Navy has adopted a 'measure-countermeasure' approach to China's PLA Navy (PLAN) presence in the IOR — maintaining a continuous deployment of ships in the Indian Ocean to monitor Chinese naval movements.
The Navy's doctrine has evolved from coastal defence (1970s-80s) to 'sea control' (dominance in the IOR in the 2000s-2010s) to 'sea denial' (preventing any hostile force from dominating the IOR, current). The Navy's two-carrier battle group concept (INS Vikramaditya + INS Vikrant) enables sustained power projection. The Navy operates the only three-dimensional naval force in the IOR: surface (destroyers, frigates, corvettes, aircraft carriers), sub-surface (SSBNs, attack submarines), and air (MiG-29K, P-8I maritime patrol aircraft, MH-60R Seahawk helicopters).
The Indian Coast Guard: The Multi-Role Sentinel
The Indian Coast Guard (ICG), established by the Coast Guard Act 1978, is a multi-role maritime force operating under the Ministry of Defence. It is NOT a part of the Indian Navy — it is a separate armed force of the Union. Its motto: Vayam Rakshamah (We Protect).
The Coast Guard has four primary missions: (1) Maritime law enforcement (anti-smuggling, anti-piracy, counter-terrorism), (2) Search and rescue (SAR), (3) Environmental protection (oil spill response, marine pollution control), and (4) Fisheries protection (ensuring Indian fishing vessels stay within EEZ boundaries).
The Coast Guard operates a fleet of 156 ships and 78 aircraft (including Dornier Do-228 and HAL Dhruv Advanced Light Helicopters). It is being expanded to a 200-ship, 100-aircraft force by 2030 under the 'ICG 2030' modernisation plan. The ICG played a crucial role in the 2008 Mumbai attacks aftermath, conducting coastal security exercises such as 'Sagar Kavach' and 'Operation Sea Vision'.
The Coast Guard's jurisdiction extends to India's territorial waters (12 nm), Contiguous Zone (24 nm), and EEZ (200 nm). However, for anti-piracy operations and high-seas law enforcement, it coordinates with the Indian Navy.
Challenges in the Maritime Domain
(1) The China Challenge: PLAN's increasing presence in the IOR is the single biggest maritime security challenge. China has built or acquired naval bases in Pakistan (Gwadar), Sri Lanka (Hambantota — now under direct Sri Lankan control but originally built by China), Bangladesh (Chittagong), Myanmar (Kyaukphyu), and the Maldives. This 'String of Pearls' strategy is designed to give China a network of logistical hubs encircling India. In response, India has deepened naval partnerships with friendly IOR states: Mauritius, Seychelles (Assumption Island), Sri Lanka, and the Maldives (despite periodic political shifts).
(2) Piracy and Maritime Terrorism: The Gulf of Aden and the Arabian Sea remain active for Somali-based piracy, though incidents have declined due to international naval patrols. The 2008 Mumbai attacks (the terrorists arrived by sea from Pakistan) demonstrated the vulnerability of India's coastline to maritime terrorism. The Coastal Security Scheme (Phase I, II, and III) has established a network of coastal police stations, surveillance systems, and interceptor boats.
(3) Blue Economy and EEZ Protection: India's EEZ hosts rich fisheries and potential deep-sea mineral resources. Illegal, Unreported, and Unregulated (IUU) fishing by foreign trawlers (particularly from Pakistan and Sri Lanka) is a persistent challenge. The Coast Guard and Navy conduct regular EEZ patrols.
(4) Andaman & Nicobar Islands Strategic Gap: The A&N Islands are India's only foothold in the Malacca Strait approaches. Despite the creation of the Andaman & Nicobar Command (ANC) in 2001 — India's only tri-service command — its development has been slower than required. The government has announced a major infrastructure upgrade (₹7,000 crore) for the islands, including an airfield expansion for fighter jets and a new naval base.
India's Maritime Strategy
India's maritime strategy is articulated through the SAGAR vision (Security and Growth for All in the Region), announced by Prime Minister Modi in 2015. SAGAR emphasises: (a) building maritime security cooperation with IOR states; (b) providing capacity-building assistance (hydrographic surveys, disaster relief, training); (c) promoting the Blue Economy; and (d) ensuring a free, open, and rules-based IOR.
Key operational elements of the strategy:
Malabar naval exercise: An annual trilateral (India-US-Japan, with Australia joining since 2020) naval exercise focused on anti-submarine warfare and maritime domain awareness.
MILAN: A biennial multi-nation naval exercise hosted by India in the Andaman & Nicobar Islands (2024 edition had 50+ participating navies).
Mission-based deployments: The Navy maintains continuous deployment in the Persian Gulf, Gulf of Aden, and the Southern Indian Ocean.
SAGAR initiative: Assistance to IOR countries — Seychelles (assault boat donation), Mauritius (coastal radar network), Maldives (marine police boats), Sri Lanka (Dornier 228 aircraft).
Key Facts
Coastline: 7,516 km; EEZ: 2.01 million sq km
Indian Navy: 67,000 personnel; ~130 ships; ~220 aircraft
Indian Coast Guard: ~15,000 personnel; 156 ships; 78 aircraft
Nuclear submarines: 2 (INS Arihant — SSBN; INS Chakra III — leased SSN, 2025)
INS Arihant: India's first indigenously built nuclear ballistic missile submarine (commissioned 2016, SSBN)
INS Vikrant: India's first indigenous aircraft carrier (commissioned 2022); 45,000 tonnes
Kalvari-class submarines: 6 Scorpene-class (French-origin, built at Mazagon Dock); INS Vaghsheer inducted 2024
Coastal Security Scheme: Phase I (2005), II (2011), III (2020) — network of coastal police stations.
SAGAR: Security and Growth for All in the Region (2015)
Malabar Exercise: Quad nations — India, US, Japan, Australia (from 2020)
ANDAMAN & NICOBAR COMMAND: Only tri-service command in India (2001)
ICG target: 200 ships + 100 aircraft by 2030
Coast Guard Act: 1978
UNCLOS: Territorial waters (12 nm), Contiguous Zone (24 nm), EEZ (200 nm), Continental Shelf (up to 350 nm)
Previous Year Questions
Year
Stage
What was tested
2024
Prelims
'SAGAR' is an initiative of India for: Maritime cooperation in the Indian Ocean Region.
2023
Mains
Discuss the role of the Indian Navy in safeguarding India's maritime interests. What are the emerging challenges?
2022
Prelims
What is the width of India's Exclusive Economic Zone as per UNCLOS? 200 nautical miles.
2021
Mains
Critically examine the 'String of Pearls' strategy of China and India's response.
2020
Prelims
'MILAN' is a biennial naval exercise hosted by which country? India.
2019
Mains
Discuss India's maritime security challenges in the Indian Ocean Region. How has India's approach evolved?
2018
Prelims
The 'Indian Coast Guard' was established in which year? 1978.
Statement Elimination Guide
Correct: "The Indian Coast Guard was established by the Coast Guard Act 1978 and operates under the Ministry of Defence."
False: "The Indian Navy and the Indian Coast Guard are the same organisation." (The Coast Guard is a separate armed force under the Ministry of Defence with distinct roles — law enforcement, SAR, environment protection.)
Trap: "India's Exclusive Economic Zone extends to 12 nautical miles from its coastline." (Territorial waters are 12 nm; EEZ is 200 nm.)
Correct: "The Andaman & Nicobar Command is India's only tri-service command, under the Chiefs of Staff Committee."
False: "The SAGAR vision was announced at the 2017 Indian Ocean Conference." (It was announced in 2015 by PM Modi in Mauritius.)
Current Affairs Hook
In 2026, the Indian Navy continues its induction of new platforms: INS Vaghsheer (6th Kalvari-class submarine) has achieved full operational capability. INS Vikrant is operating a full complement of MiG-29K fighters and MH-60R helicopters. The Navy's P-8I fleet (13 aircraft) conducts sustained IOR surveillance. The Andaman & Nicobar Command's expansion — including a new naval air station on Kamorta Island — has been accelerated. The Maldives hosted Chinese military vessels in 2025, straining ties; India responded by increasing surveillance and naval visits to Male. The Quad's Maritime Domain Awareness (MDA) initiative has been operationalised, sharing real-time shipping data between India, US, Japan, and Australia. The SAGAR initiative has been expanded to include hydrographic survey support to 8 IOR countries. The 2026-27 Budget increased defence allocation for the Navy by 18%, the highest among the three services.
Environment (GS 3): Marine pollution, oil spill response, climate change and sea-level rise impacts on coastal communities.
Common Mistakes
"The Indian Coast Guard is part of the Indian Navy": No. The Coast Guard is a separate armed force under the Ministry of Defence, established by the Coast Guard Act 1978. The Navy provides operational support during war but they are distinct organisations.
"India's EEZ is 200 km": It is 200 nautical miles (approximately 370 km). Nautical miles and kilometres are different units — a crucial distinction for Prelims.
"The Andaman & Nicobar Command is a naval command": It is a tri-service command (Army + Navy + Air Force). The commander rotates among the three services.
"SAGAR is a military alliance": SAGAR is a vision/strategy, not a treaty-based alliance. It emphasises cooperation, capacity building, and a free/open/rules-based IOR.
"MILAN and Malabar are the same exercise": MILAN is India-hosted (biennial, multi-nation); Malabar is Quad-hosted (annual, rotating leadership). Both are naval exercises but with different scopes.
Revision Snapshot
India's maritime security is anchored by the Navy (67,000 personnel, 2 aircraft carriers, 130 ships, 2 nuclear submarines) and the Coast Guard (15,000 personnel, 156 ships). The Navy has evolved from coastal defence (brown-water) to IOR power projection (blue-water), marked by INS Vikrant (first indigenous carrier) and INS Arihant (first nuclear ballistic missile submarine). Strategy: SAGAR vision (2015), two-carrier battle group, continuous IOR deployment, Quad/Malabar cooperation. Coast Guard: multi-role (law enforcement, SAR, environmental protection), expanding to 200 ships by 2030. Challenges: China's String of Pearls (Gwadar, Hambantota, Kyaukphyu), piracy, coastal terrorism (post-2008), EEZ violations, underdeveloped A&N Command. India's response: indigenous shipbuilding, IOR diplomacy, SAGAR initiatives (capacity building to IOR states), and enhanced maritime domain awareness. Key principles: UNCLOS-based rules, free/open IOR, and the shift from 'continental mindset' to 'maritime mindset'.
Source Notes
Ministry of Defence — Annual Report 2024-25 (Indian Navy and Coast Guard)
Indian Maritime Security Strategy 2015 ('Ensuring Secure Seas'), Indian Navy
SAGAR Vision — PM Modi's Mauritius speech (2015)
Indian Coast Guard — Annual Report 2024-25
UNCLOS (1982) — India ratified 1995
MEA — India-IOR Relations: SAGAR Initiative Updates
ORF/IDSA — Maritime Security in the Indian Ocean Region (2024)
Ministry of Defence — Coastal Security Scheme Phase III Evaluation (2023)