Reclaiming the Blue Frontier: India’s Maritime Renaissance

A: The Resurgence of India’s Maritime Might and Autonomous Warfare

For nearly seven decades after independence, India’s illustrious maritime legacy remained overshadowed by land-centric geopolitical priorities. A civilization whose ancient Chola, Kalinga, Satavahana, and Maratha fleets once commanded the prestigious Indian Ocean trade routes saw its modern maritime domain reduced to passive coastal defence and heavy reliance on imported foreign technology.

Today, a profound paradigm shift is unfolding across the Indian Ocean Region (IOR). Driven by the Atmanirbhar Bharat (Self-Reliant India) initiative and rapid advances in marine robotics, artificial intelligence, and autonomous surface vessels, India is reclaiming its blue water heritage.

The Historical Context: Seven Decades in Abeyance:

To understand the magnitude of India's current maritime emergence, one must examine the centuries of decline that preceded it. Historically, ancient and medieval Indian kingdoms dominated the sea lanes connecting the East and West. The Chola Empire utilized sophisticated naval architecture to project power across Southeast Asia, while the Maratha Navy under Kanhoji Angre effectively countered European colonial powers along the Konkan coast.

However, colonial exploitation systematically dismantled indigenous shipbuilding knowledge and naval infrastructure. Post-1947 policies prioritized territorial land borders, leaving naval force projection under-funded. Foreign technology dependency became the norm; complex sensors, propulsion units, and naval platforms were routinely procured from overseas defence contractors at exorbitant costs.

The modern resurgence breaks away from this legacy. By coupling local engineering talent with defence incubators and deep-tech start-ups, India is shifting from a passive importer of naval hardware to a producer of indigenous autonomous platforms.

In this context, the daring historical, technological, and geopolitical significance of the voyage of “INSV Koundinya” serves as an example. The ship was built without iron or engines—in other words, without modern gadget/technology. It shows that India’s traditional shipbuilding skills still matter, using wind, wood, human knowledge, and new ideas.(Please refer to my earlier blog ‘The Ghost Ship of the Indian Ocean’ dated, Jan 03, 2026)

Matangi: India’s Autonomous Maritime Breakthrough:

In late October 2024, an indigenously engineered vessel named 'Matangi' accomplished a historic milestone in the Indian Ocean. Designed as an autonomous drone boat, Matangi successfully traversed approximately 850 nautical miles (roughly 1,500 kilometers) from Mumbai, Maharashtra, to Thoothukudi in Tamil Nadu without a single human crew member on board.

Developed through a collaborative venture between Indian deep-tech firm Sagar Defence Engineering and the Indian Navy under the Sagar Mala Parikrama exercise, Matangi validated the operational readiness of long-range autonomous surface vessels (ASVs).

Operational Architecture of Matangi:

Feature	Technical Capability	Strategic Benefit
Autonomous Navigation	Integrated AI core processing multi-sensor inputs	Real-time path correction without human remote piloting
Collision Avoidance	Maritime radar, electro-optical camera suites, and AIS	Safe transit through high-density commercial shipping lanes
Operational Range	Exceeds 850 NM in open ocean conditions	Persistent littoral and blue-water surveillance capabilities
Cost Efficiency	Zero crew life-support requirements; optimized hull hydrodynamic drag	Drastic reduction in fuel usage and human operational risk

Strategic Implications for Maritime Security:

The deployment of autonomous platforms like Matangi addresses three vital security challenges across the Indian Ocean Region:

1. Continuous Littoral Domain Awareness: India’s 7,516-kilometer coastline demands constant monitoring. Manned frigate and patrol vessel operations are resource-intensive. Autonomous fleets can maintain continuous perimeter patrols around exclusive economic zones (EEZs) and alert shore facilities to unauthorized incursions.

1.    High-Risk Reconnaissance: In contested maritime environments, deploying unmanned vessels for Intelligence, Surveillance, and Reconnaissance (ISR) eliminates risk to personnel. Matangi-class vessels can scout hazardous corridors, detect mines, or monitor hostile activity while keeping military personnel safe.

2.    Escort and Counter-Piracy Support: By operating alongside naval fleets or commercial convoys, autonomous surface craft extend the radar horizon of command ships, serving as force multipliers against non-state actors, maritime piracy, and illegal fishing.

B: Indigenous Deep-Sea Robotics and Coral Reef Conservation

 While autonomous surface vessels protect India’s ocean surface, a parallel technological revolution is taking place beneath the waves. Subsea environments—marked by high hydrostatic pressure, zero visibility, and extreme environmental fragility—present severe engineering challenges.

Kochi-based startup ‘EYEROV’, founded by IIT graduates Johns T Mathai (IIT Delhi) and Kannappa Palaniappan (IIT Madras), has emerged as a leader in underwater marine robotics.

The Subsea Challenge: Replacing High-Risk Human Diving

Deep-water infrastructure inspection—spanning hydroelectric dams, offshore oil platforms, shipping hulls, and underwater tunnels—has historically relied on commercial divers. Human diving in low-visibility or high-pressure environments involves significant safety risks, logistical complexity, and steep operational costs (ranging from $1,500 to $3,000 per hour).

Technically called visual turbidity, suspended particles in rivers, harbours, and sea floors can render traditional underwater optical sensors useless. Human divers often inspect underwater structures by feel, increasing the likelihood of missed structural flaws or serious accidents.

EYEROV’s Full-Stack Marine Platform:

To overcome these physical and visual constraints, EYEROV developed an integrated subsea inspection hardware and software architecture:

1. Hardware Design: Micro-ROVs (EYEROV Tuna & Sagara)

• Portability: Weighing under 10 kilograms, the EYEROV Tuna can be deployed by a single operator from small craft or shorelines.
• Depth & Manoeuvrability: Designed to operate at depths up to 300 meters, utilizing high-thrust vectoring thrusters offering 6 Degrees of Freedom (DOF) for precise positioning against strong subsea currents.
• Extreme Environment Resilience: Built with aerospace-grade marine alloys and specialized pressure-balancing seals to withstand intense hydrostatic forces.

2. Software Architecture: EVAP (EYEROV Visualization & Analytics Platform):

• Real-Time Image Processing: EVAP uses proprietary artificial intelligence models to clear turbid water feeds in real time, delivering high-definition video output to surface operators.
• Automated Anomaly Detection: The software automatically identifies, logs, and classifies structural cracks, biofouling, and corrosion on subsea assets.

Ecological Stewardship: Protecting Marine Ecosystems:

Beyond industrial and military deployments, indigenous marine robotics play a vital role in ecological conservation across the Andaman, Nicobar, and Lakshadweep archipelagos.

Coral reefs are highly fragile ecosystems vulnerable to sea surface temperature changes, ocean acidification, and physical damage. Traditional human-diver surveys risk accidentally damaging delicate coral structures with fins or equipment.

Micro-ROVs equipped with silent, low-vibration propulsion systems can approach within centimetres of coral colonies without disturbing the habitat. These autonomous systems generate high-resolution 3D maps and thermal profiles of reef structures, allowing marine biologists to track coral bleaching, measure biodiversity loss, and implement data-driven restoration projects across India's island territories.

Comparison of Autonomous Maritime Technologies

Technical Attribute	Surface Autonomous Vessels (ASVs)	Underwater Remotely Operated Vehicles (ROVs)
Representative System	Matangi (Sagar Defence Engineering)	EYEROV Tuna / Sagara (EYEROV)
Primary Domain	Ocean Surface / Littoral Zones	Deep-Sea / Subsurface / Tunnels
Communication Link	Satellite, RF Link, AIS Integration	Fiber-optic tether / Acoustic modem
Key Operational Use	ISR, Border Patrol, Maritime Security	Asset Inspection, Reef Conservation, Mapping
Operational Range	Up to 1,500+ km autonomous transit	300m depth; multi-kilometer tethered runs

 

Key Pillars of India's Blue Economy Policy:

1. Port Development & Infrastructure Modernisation:

The policy seeks to transform traditional ports into integrated industrial and logistics engines through the Sagarmala Programme, Maritime India Vision 2030 (MIV 2030), and Maritime Amrit Kaal Vision 2047.

Mega Transhipment Hubs: Historically, over 25% of India's container cargo was transhipped through foreign ports like Colombo and Singapore, adding time and logistics costs. To retain value domestically, mega transhipment ports are being developed at Vadhavan (Maharashtra), Galathea Bay (Great Nicobar Island), and Vizhinjam (Kerala).

Port-Led Industrialisation: Establishing Port-Proximate Industrial Clusters (PICC) and coastal economic zones (CEZs) to collocate manufacturing hubs near berths, reducing internal inland freight expenses.

Smart & Green Ports: Major ports are adopting automated terminal management systems, shore-to-ship power supply, and green hydrogen bunkering infrastructure to meet International Maritime Organization (IMO) decarbonisation goals.

2. Shipping, Shipbuilding, and Logistics Efficiency:

Despite handling over 95% of international trade volume by sea, India’s share in global fleet ownership and shipbuilding has historically remained under 2%. The Blue Economy framework addresses the Indigenous Shipbuilding Initiatives: The government has established dedicated financial assistance schemes and shipbuilding clusters (notably in Gujarat and Tamil Nadu) to position India among the top global shipbuilding nations.

Coastal Shipping & Inland Waterways: Diverting bulk commodities (coal, cement, steel) from congested rail and road networks to National Waterways (NW-1, NW-2) and coastal shipping routes, lowering domestic logistics costs from ~13% of GDP down to international standards (~8–9%).

Maritime Digital Integration: Deployment of the National Logistics Portal (Marine) and unified port operating platforms to enable paperless, automated customs clearing and real-time cargo tracking.

Deep-Sea Mining and Ocean Exploration:

Under the Deep Ocean Mission (DOM)—a ₹4,077-crore initiative—India is unlocking the mineral potential of the abyssal plain while developing indigenous subsea robotics.

 

Component	Technical Focus	Strategic / Resource Target
Samudrayaan Mission	Matsya-6000 human-occupied submersible (engineered by NIOT) capable of diving down to 6,000 metres	Deep-sea exploration, direct abyssal sampling, subsea environmental assessment
Polymetallic Nodules (PMN)	Extraction systems targeting Central Indian Ocean Basin (CIOB) allocation (150,000 sq. km granted by International Seabed Authority)	Copper, Nickel, Cobalt, and Manganese for battery energy storage and EV manufacturing
Polymetallic Sulphides (PMS)	Subsea crawling vehicles and mining tools targeting hydrothermal vents in the Southern Indian Ocean	Rare earth elements (REEs), Gold, Silver, and strategic metals

Policy Framework and Strategic Governance:

The execution of India's Blue Economy Policy relies on coordinated cross-ministry governance, structured across distinct National Maritime Planning Integration coupled with strategic surveillance.

 

1. Marine Spatial Planning (MSP): Establishes clear zoning rules along coastal corridors

           

Marine Spatial Planning (MSP): Establishes clear zoning rules along coastal corridors to prevent industrial encroachment on fragile marine ecosystems, artisanal fishing zones, and coral reef conservation sites.

 2. Environmental & Climate Safeguards: Mandates environmental impact assessment (EIA) protocols for ocean mining and port dredging to protect blue carbon sinks like mangroves, seagrasses, and salt marshes.

3. Maritime Security & Geo-strategy: Interlinks economic activities with Maritime Domain Awareness (MDA). Deploying autonomous surveillance craft (such as the Matangi ASV) and subsea ROVs (such as EYEROV) ensures that trade routes and offshore infrastructure remain monitored against non-traditional security threats.

Conclusion: Securing the Future of the Blue Economy

India’s maritime transition from historical neglect to technological leadership marks a decisive turning point in its national development strategy. Matangi's successful long-range autonomous transit across 850 nautical miles shows that indigenous surface platforms can protect the nation's ocean boundaries, secure commercial shipping channels, and reduce personnel risk.

Simultaneously, underwater robotic platforms developed by pioneers like EYEROV prove that Indian engineering talent can build world-class, cost-effective subsea hardware capable of inspecting critical infrastructure and protecting delicate marine ecosystems.

By integrating AI-driven surface vessels, subsea robotics, and local manufacturing ecosystems, India is laying the foundation for a resilient Blue Economy. These technological advances ensure that the country not only safeguards its 7,516-kilometer coastline, but also regains its historical position as a major maritime power in the 21st century.

India’s Blue Economy framework serves as a strategic roadmap to leverage the country's 7,516 km coastline and vast Exclusive Economic Zone (EEZ) of over 2 million square kilometers. Drafted under the oversight of the Ministry of Earth Sciences (MOES) and supported by the NITI AAYOG, the policy aims to increase ocean-based contributions to India’s GDP (currently estimated at ~4%) while balancing marine conservation with national security.

The policy centres on three core infrastructure and technological pillars: Port Development, Shipping & Logistics, and Deep-Sea Mining, while keeping a close eye on strategic surveillance.

 

 

Disclaimer: This narrative is the culmination of my personal study and reflections on landmark achievements in Indian maritime explorations, pieced together from various media reports and published documents. “I have endeavoured to present the facts with the utmost accuracy, deep respect for the start-ups, and admiration for the effort behind India’s maritime transition from historical neglect to technological leadership. This transition marks a decisive turning point in India’s national development strategy.” However, I am but a super senior citizen sharing my perspective, and I acknowledge that my understanding may have limitations. I respectfully request that any shortcomings be pardoned, as my only intent was to celebrate the spirit of self-reliance. I welcome any corrections from those with deeper knowledge of the subject.