India's naval expansion and its Indian Ocean strategy

The state of play, in one line

India is expanding its Navy at close to the fastest pace in its history, and it is wrapping that hardware in a reworked Indian Ocean doctrine — from the 2015 SAGAR vision, to MAHASAGAR in 2025, to the INMSS-2026 maritime strategy — that casts India as the region’s “preferred security partner” rather than a distant power. The build-out and the doctrine are one story: a larger, more indigenous fleet is the hardware the strategy is built on.

The build-out

Navy officials have described 2026 as the largest single-year force accretion in the service’s history, with a stated plan to commission 19 warships over the year — reported as roughly one warship every six weeks — after commissioning 14 warships in 2025 (The Tribune; Indian Masterminds). The 2026 inductions include Project 17A Nilgiri-class stealth frigates: INS Taragiri was commissioned in April 2026, following INS Nilgiri (January 2025) and the pair INS Udaygiri and INS Himgiri (August 2025); the seven-ship class is split between Mazagon Dock and Garden Reach (Naval News; Marine Insight). Beyond the near term, reporting citing Navy figures describes around 45 warships under construction and in-principle approval for a further tranche of vessels — surface ships, submarines and fast interceptor craft — with the service having articulated targets of roughly 150–160 ships by 2030 and, in various statements, between 175 and 200 by 2035 (Marine Insight; Indian Masterminds). These are stated Navy targets, not outcomes; the brief tracks them as goals, not certainties, and reporting places the current fleet at around 145–150 warships and submarines.

Two milestones anchor the indigenous programme. INS Vikrant, India’s first domestically built aircraft carrier, was commissioned at Cochin Shipyard on 2 September 2022 (PIB), joining the Russian-origin INS Vikramaditya to give India two operational carriers. On the undersea leg, the second indigenous ballistic-missile submarine, INS Arighaat, was commissioned at Visakhapatnam on 29 August 2024 (PIB), following INS Arihant. The construction is concentrated in public-sector yards — Mazagon Dock, Garden Reach and Cochin Shipyard — under the Atmanirbhar Bharat self-reliance drive; proposals for a second indigenous carrier (IAC-2) and for the Project 75I conventional-submarine line have been reported as under consideration within the Ministry of Defence.

The doctrine: SAGAR to MAHASAGAR to INMSS-2026

India’s Indian Ocean strategy has a stated lineage. In March 2015 the government articulated SAGAR — Security and Growth for All in the Region — casting India as a “net security provider” and “first responder” for the Indian Ocean’s littoral states (MEA / Embassy of India). In March 2025 that framing was widened to MAHASAGAR — Mutual and Holistic Advancement for Security and Growth Across Regions — which, on the government’s own account, extends the vision beyond regional maritime security to economic diplomacy, technological connectivity and sustainability (MEA / Embassy of India).

In April 2026 the Navy released INMSS-2026 at the Naval Commanders’ Conference, described as its third public maritime strategy in two decades after “Freedom to Use the Seas” (2007) and “Ensuring Secure Seas” (2015) (Indian Navy). Analysis of the document reads it as a shift “from access to security to competition management”: it emphasises competition below the threshold of conflict, distinguishes an “Area of Maritime Interest” from a narrower “Area of Responsibility,” and moves the language from “net security provider” toward “preferred security partner” and “first responder,” stressing consent and interoperability over hierarchy (MP-IDSA). The same analysis notes the document acknowledges a gap between expanding maritime interests and finite capability, describing a posture of “calibrated selectivity” — which is the point at which the doctrine meets the build-out.

Operationalising it: presence, partners and IOS SAGAR

The strategy is being exercised through mission-based deployments and multilateral presence rather than bases. The Indian Ocean Ship (IOS) SAGAR initiative, launched in 2025, embarks personnel from partner navies aboard an Indian warship for joint patrols and capacity-building; its second edition, from March 2026, involved personnel from 16 nations, with activity focused on counter-piracy, EEZ surveillance, counter-trafficking and disaster response — the functional problems that smaller Indian Ocean states prioritise (PIB; Lowy Institute). Analysts describe this as India “building a navy of neighbours”: accumulating presence and practical interoperability with regional navies rather than seeking exclusive alignment (Lowy Institute).

The China backdrop

The expansion and the doctrine are widely read against China’s growing maritime footprint in the Indian Ocean. Reporting and analysis note that Chinese naval deployments and research-vessel activity in the region have increased, and that Beijing has deepened defence ties with several littoral and ASEAN states in parallel with India’s own outreach (Lowy Institute; MP-IDSA). Positions on how decisive India’s response is vary: some analysis characterises India as steadily accumulating regional presence and interoperability, while other commentary stresses the persistent gap between the Navy’s stated fleet targets and its current hulls. The brief attributes each reading rather than adjudicating between them, and connects to the broader China relationship and India’s strategic-autonomy hedge.

Where it strains

Three tensions run through the current picture. First, the build-out is measured against ambitious stated targets — roughly 150–160 ships by 2030 and, in various statements, 175 to 200 by 2035 — and the open question the brief tracks is the gap between those targets and commissioned hulls, given the record of schedule slippage in Indian shipbuilding. Second, the doctrine’s own language of “calibrated selectivity” (MP-IDSA) concedes that maritime interests are outrunning capacity, so where the Navy is present becomes a strategic choice in itself. Third, the fleet remains partly dependent on foreign systems and design assistance even as indigenous content rises, tying naval modernisation to the wider strategic-autonomy balancing act. None of these is a prediction; each is a live seam between what the Navy has stated and what it has so far fielded.

Who owns this topic (and why we’re here)

The search and AI-answer space for “Indian Navy expansion” and “India Indian Ocean strategy” is dominated by two layers: defence-trade outlets (Marine Insight, Naval News, and aggregators) that report each induction, and exam-prep and think-tank explainers (ClearIAS, Adda247, PW, MP-IDSA, Lowy, ORF) that summarise SAGAR and MAHASAGAR. Those pieces are useful but either narrow (one ship at a time) or static (they date as the doctrine moves). This brief is the maintained alternative: it joins the hardware and the doctrine into one picture, sources every claim, distinguishes stated targets from delivered capability, and is anchored to a structured Navy dossier carrying the 1947-to-present record.

Maintained topic brief. Analysis by IndiaStand — it characterises the state of play and the range of positions actually held, attributes each claim, and makes no forecast and no recommendation.