Indian Navy commissions first indigenous multi-purpose vessel INS Samarthak

Commissioning of INS Samarthak Marks a Milestone in Indigenous Naval Testing

The Indian Navy reached a major operational milestone with the commissioning of INS Samarthak, its first indigenously designed and constructed Multi-Purpose Vessel (MPV). Carrying pennant number A10, the ship was formally inducted into service during an official ceremony at the Karwar Naval Base in Karnataka on October 16, 2026. The commissioning event was presided over by Vice-President C.P. Radhakrishnan, alongside Chief of the Naval Staff Admiral Krishna Swaminathan, state dignitaries, and senior naval commanders. Built by private defense shipbuilder Larsen & Toubro (L&T), INS Samarthak represents a specialized addition to the fleet, designed to perform naval sensor evaluations, weapon trials, target support, and auxiliary maritime operations.

The induction highlights an evolving fleet architecture that incorporates dedicated auxiliary vessels to support testing and operational trials. Frontline warships, such as stealth frigates and guided-missile destroyers, are primary combat assets designed for high-end surface, air, and underwater warfare. Assigning frontline combatants to routine trials or target-towing duties consumes valuable operational hours and accelerates mechanical wear on primary platforms. By introducing dedicated multi-purpose vessels, the Indian Navy establishes an efficient operational framework that preserves combat readiness while providing a constant platform for testing new indigenous technologies.

With an indigenous content exceeding 75 percent, INS Samarthak reflects the nation's push for self-reliance in defense manufacturing. The ship was ordered under an ₹887-crore contract signed between the Ministry of Defence and Larsen & Toubro on March 25, 2022, covering two multi-purpose vessels. Following keel laying in March 2023, L&T completed construction and outfitting within schedule. The second vessel of the class, INS Utkarsh, was launched in January 2025 and is currently undergoing sea trials prior to induction.

Technical Capabilities and Flexible Architecture of the Multi-Purpose Platform

INS Samarthak is engineered with a flexible, modular layout that allows rapid adaptation to varied operational mandates. Unlike conventional warships built around permanent combat systems, the vessel features multi-use deck areas, flexible power hookups, and modular mounting points. This architecture allows defense scientists, research agencies, and naval engineers to temporarily install experimental equipment—such as prototype radars, electro-optical sensors, acoustic arrays, and communication suites—to conduct field evaluations under real maritime conditions without altering the hull structure.

A core function of INS Samarthak is serving as a dedicated target deployment and trials bed for fleet weapons testing. During gunnery practice, missile tracking tests, and torpedo validation exercises, the vessel deploys, controls, and retrieves target craft, towed arrays, and simulated threat units. The bow region features structural provisions capable of accommodating modular naval guns, close-in weapon systems, and torpedo launchers. Mounting experimental hardware on these designated positions enables engineers to collect precise dynamic data on firing loads, shock transmission, and guidance accuracy during live-fire sea trials.

The vessel also acts as an operational mothership for uncrewed surface, subsurface, and aerial platforms. As naval warfare incorporates autonomous systems, INS Samarthak provides essential command facilities, data links, and launch-and-recovery equipment for uncrewed aerial vehicles, uncrewed surface vessels, and autonomous underwater vehicles. Its spacious aft deck and heavy-lift crane systems permit safe handling of autonomous submersibles during underwater survey and mine countermeasure evaluations.

Beyond testing roles, the vessel provides auxiliary support for low-intensity maritime operations, coastal surveillance, and salvage. Equipped with high-capacity winches and towing gear, INS Samarthak can perform towing and maritime assistance tasks. For humanitarian assistance and disaster relief missions, the ship's internal spaces can be converted into a limited medical facility complete with emergency care units, stabilization bays, and damage-control equipment.

Programmatic Context and Private Sector Synergy in Defense Shipbuilding

The commissioning of INS Samarthak underscores the expanding role of private shipyards in meeting strategic defense requirements. Historically, Indian naval shipbuilding was concentrated in state-owned public sector shipyards. Modern defense acquisition frameworks have encouraged private enterprises to participate in warship and auxiliary construction, introducing commercial project management techniques, modular block fabrication, and streamlined supply chains.

The ₹887-crore contract awarded to Larsen & Toubro in March 2022 served as a key benchmark for private sector execution in defense shipbuilding. Following contract signing, the keel for INS Samarthak was laid in March 2023 at L&T's Kattupalli shipyard facility. Efficient project monitoring allowed L&T to complete hull construction, machinery integration, and system installation smoothly, followed by rigorous harbor acceptance tests and sea trials.

The integration of over 75 percent indigenous content demonstrates the strength of the domestic defense industrial ecosystem. The vessel incorporates machinery, fluid handling systems, electrical distribution networks, and control systems sourced from domestic suppliers and micro, small, and medium enterprises. Sourcing components domestically reduces long-term maintenance costs, streamlines spare parts availability, and minimizes dependency on foreign original equipment manufacturers.

Strategic Operational Value for Naval Force Projection and Autonomous Operations

From an operational perspective, INS Samarthak provides vital relief to frontline combat fleets. Previously, the Navy often had to assign guided-missile destroyers or frigates to conduct routine weapons trials, test prototype sensors, or tow gunnery targets. Diverting combatants from active operational theaters created capability gaps in sea-lane monitoring and reduced the overall availability of frontline strike forces.

By transferring trial duties to specialized multi-purpose vessels, frontline warships remain deployed on critical maritime security and deterrence missions across the Indian Ocean Region. Operating the MPV class also offers significant cost savings, as its low fuel consumption and simplified maintenance requirements make long-duration test schedules far more economical than deploying heavy combatants.

Furthermore, the vessel provides a vital ocean test bed for autonomous warfare technologies. As naval doctrines evolve toward uncrewed swarms and distributed sensing, INS Samarthak enables defense scientists to evaluate autonomous control software, satellite data links, and sensor payloads in open ocean conditions. This dedicated testing environment speeds up the transition of prototype technologies from laboratory development to active fleet deployment.

The Vital Role of Land-Based Test Infrastructure in Supporting Naval Modernization

While ocean trials onboard vessels like INS Samarthak provide final operational validation, the reliability of all marine hardware depends on rigorous ground testing before installation. Every high-pressure gas system, hydraulic actuator, snubber assembly, and automated control interface must undergo exhaustive land-based testing under simulated operating pressures, extreme thermal variations, and severe shock cycles. Advanced ground test benches, hydraulic test stations, high-pressure gas testing setups, and automated test equipment are essential to verify that critical components meet stringent military specifications before being deployed at sea.

As India's defense sector accelerates the indigenization of naval platforms and advanced weapon systems, specialized engineering companies play a vital role in designing the underlying ground test infrastructure. Neometrix Defence Limited designs and manufactures advanced test benches, high-pressure gas systems, hydraulic test facilities, and automated test equipment that enable defense laboratories, shipyards, and aerospace manufacturers to rigorously validate critical hardware on land, ensuring operational reliability across air, land, and sea missions.