On 5 July 2026 the Indian Navy featured in two very different but connected stories. In the Indo-Pacific, ships of the Eastern Fleet — INS Udaygiri, INS Shakti and INS Kavaratti — concluded a port call at Changi Naval Base, Singapore. Across the Atlantic, the sail-training ship INS Sudarshini arrived at New York to represent India at the US International Naval Review 250 and Sail4th 250 celebrations. Together they are a textbook illustration of naval diplomacy — the use of warships and sail-training vessels as instruments of foreign policy — which is a favourite theme in the NDA and CDS defence-and-current-affairs sections.
The three faces of naval power
Before the specifics, fix the concept examiners test. A navy performs three broad roles, and both events showcase the non-combat ones:
- Military role — sea control, sea denial and deterrence.
- Diplomatic role — port calls, joint exercises, goodwill visits and "showing the flag" to build partnerships. Both 5 July events fall here.
- Constabulary/policing role — anti-piracy, anti-smuggling, HADR (Humanitarian Assistance and Disaster Relief) and EEZ patrol.
- Benign role — search and rescue, hydrographic survey and disaster relief.
Naval diplomacy works because a visiting warship is sovereign territory afloat: it signals capability, intent and friendship all at once, without a single shot.
The Singapore port call: Act East in action
The Eastern Fleet visit, led by Rear Admiral Alok Anand, Flag Officer Commanding Eastern Fleet, was explicitly aligned with the ASEAN-India Year of Maritime Cooperation and India's Act East Policy. That policy lineage is worth memorising: India's "Look East Policy" was launched in 1992 under P.V. Narasimha Rao to deepen economic ties with Southeast Asia; it was upgraded to the "Act East Policy" in 2014, adding a strategic and security dimension and extending the reach to the wider Indo-Pacific. Singapore, sitting astride the Strait of Malacca — one of the world's busiest and most strategically vital chokepoints — is a natural partner, and understanding these sea lanes connects directly to the geography of transport and connectivity.
The three ships are a neat cross-section of the modern Indian Navy, and their identities are exactly the kind of detail NDA GK questions probe:
- INS Udaygiri — a Project 17A (Nilgiri-class) stealth guided-missile frigate, built by Mazagon Dock / Garden Reach shipbuilders, armed with BrahMos and Barak-8 missiles. A frontline surface combatant.
- INS Kavaratti — a Kamorta-class (Project 28) anti-submarine warfare (ASW) corvette, notable for its largely indigenous carbon-composite superstructure; commissioned at Visakhapatnam in 2020.
- INS Shakti — a fleet support tanker (Deepak-class) that provides underway replenishment of fuel, water and stores, giving the fleet its long "sea legs."
The engagements included cross-deck visits to build interoperability, plus a public-facing element — school students toured INS Kavaratti — that is the soft-power side of naval diplomacy.
INS Sudarshini in New York: sail power as soft power
The second story is more romantic and just as strategic. INS Sudarshini is a three-masted barque — a sail-training ship built by Goa Shipyard, based at Kochi (Southern Naval Command), and a sister ship of INS Tarangini. She trains young naval and coast-guard cadets in the old disciplines of the sea: seamanship, navigation and character-building under sail.
Her presence in New York is part of Lokayan 2026, a 10-month, roughly 22,000-nautical-mile transoceanic expedition spanning 13 countries and 18 ports that began from Kochi on 20 January 2026. In New York she joined the Parade of Sail along the Hudson River, flying the Tricolour among the world's great tall ships, and berthed at Brooklyn for Sail4th 250 — the celebrations marking the 250th anniversary of United States independence (1776-2026). After earlier stops at Norfolk and Baltimore, this is classic "showing the flag" diplomacy that projects India's maritime heritage and deepens the India-US strategic partnership.
Why the two events belong together
Placed side by side, the frigate at Changi and the barque on the Hudson capture the full spectrum of India's maritime strategy under the SAGAR doctrine — "Security and Growth for All in the Region" (articulated in 2015), now often framed as MAHASAGAR. One end is hard-edged interoperability with a key Indo-Pacific partner astride the Malacca chokepoint; the other is heritage-and-goodwill diplomacy with the world's largest naval power. Both advance the same goal: a stable, rules-based, cooperative maritime order in which India is a "net security provider" in the Indian Ocean Region. That doctrine framing — connecting individual port calls to a grand strategy — is what lifts an NDA/CDS answer from a list of ship names to a genuine argument, and it ties back to the broader defence and security syllabus.
The exercises that back the diplomacy
Port calls are the visible tip; sustained partnership is built through joint naval exercises, which are heavily tested. With Singapore specifically, India runs SIMBEX (Singapore-India Maritime Bilateral Exercise), one of India's longest-running bilateral naval exercises, held annually since 1994 — so the July 2026 Changi visit sits within a three-decade relationship. Keep the wider exercise map ready:
- MALABAR — the flagship Quad-linked exercise involving India, the USA, Japan and Australia.
- MILAN — a multinational gathering of navies hosted by India at Visakhapatnam.
- VARUNA (with France), INDRA (with Russia), AUSINDEX (with Australia), JIMEX (with Japan) and SLINEX (with Sri Lanka).
Being able to match an exercise to its partner country is one of the most reliable ways to bank a defence-GK mark.
Chokepoints and the geography of sea power
Naval strategy is ultimately about geography. The three chokepoints an aspirant must know cold are the Strait of Malacca (linking the Indian and Pacific Oceans, carrying a huge share of global and Chinese trade), the Strait of Hormuz (the Persian Gulf oil artery) and the Bab-el-Mandeb (the Red Sea gateway to the Suez Canal). India's peninsular position, its island territories (Andaman & Nicobar in the east, Lakshadweep in the west) and its command of the sea lanes of the northern Indian Ocean are what make it a natural "first responder" and net security provider in the region — the strategic logic behind both the Changi and New York deployments.
🎯 Practice MCQs
Q1. INS Udaygiri, which visited Singapore in July 2026, belongs to which class/project? (a) Kolkata-class destroyer (Project 15A) (b) Nilgiri-class stealth frigate (Project 17A) (c) Scorpene-class submarine (Project 75) (d) Vikrant-class aircraft carrier → (b) INS Udaygiri is a Project 17A (Nilgiri-class) stealth guided-missile frigate.
Q2. India's "Look East Policy," later upgraded to "Act East Policy," was originally launched in which year? (a) 1985 (b) 1992 (c) 2004 (d) 2014 → (b) The Look East Policy was launched in 1992; it was upgraded to the Act East Policy in 2014.
Q3. INS Sudarshini, which reached New York for Sail4th 250, is best described as a: (a) Nuclear submarine (b) Aircraft carrier (c) Three-masted sail-training ship (barque) (d) Missile destroyer → (c) INS Sudarshini is a three-masted barque sail-training ship, a sister ship of INS Tarangini, based at Kochi.
Q4. INS Kavaratti is a corvette optimised primarily for which role? (a) Air defence (b) Anti-submarine warfare (ASW) (c) Amphibious landing (d) Mine-laying → (b) INS Kavaratti is a Kamorta-class (Project 28) anti-submarine warfare corvette.
Q5. The Indian Navy's guiding maritime vision for the Indian Ocean Region, articulated in 2015, is known as: (a) SAGARMALA (b) SAGAR (Security and Growth for All in the Region) (c) Blue Water Doctrine (d) Cold Start → (b) SAGAR — "Security and Growth for All in the Region" — is the Indian maritime doctrine (now often framed as MAHASAGAR). SAGARMALA is a separate ports-infrastructure programme.
📋 How this gets asked (PYQ pattern)
Naval current affairs recur in NDA/CDS in three shapes. First, a ship-identification MCQ — match a warship to its class, builder or role (frigate/corvette/destroyer/submarine), so keep a running table of recent commissionings and their projects (17A frigates, Kamorta corvettes, Project 15B destroyers, Project 75 submarines). Second, a policy/doctrine link — Act East (1992→2014), SAGAR (2015), the Quad, or Malabar/MILAN exercises, often as a fill-in-the-blank on year or founder. Third, in interview and descriptive answers, "naval diplomacy" and "net security provider" as a theme, where you connect a specific port call to India's Indo-Pacific strategy. The fresh 2026 hooks are INS Sudarshini's Lokayan 2026 expedition and the Eastern Fleet's Singapore visit under the ASEAN-India Year of Maritime Cooperation. Avoid inventing exact past-paper citations; instead demonstrate you can slot each event into the doctrine. Pair this with the key maritime chokepoints (Malacca, Hormuz, Bab-el-Mandeb) for maximum coverage.
Targeting NDA/CDS 2026? Cavalier's NDA current-affairs hub keeps a running, exam-ready log of every major defence development, and our serving-and-retired-officer mentors run focused NDA and SSB courses. Defence GK rewards the aspirant who revises ships, doctrines and dates together — not in isolation.
Written by Col Vijyanat Thakur, Cavalier faculty (Defence Studies & SSB). Follow The Cavalier Academy on Facebook and YouTube.
Source: Indian Navy / PIB Delhi releases — "Indian Naval Ships Conclude Successful Visit to Singapore" (PRID 2281318) and "Lokayan 2026 – INS Sudarshini Arrives in New York for Sail4th 250 Celebrations" (PRID 2281357), 5 July 2026; ship and doctrine facts cross-verified against public naval records.