INS Sahyadri arrives in Vladivostok, Russia for bilateral Exercise INDRA-2026

International Relations & Defence Diplomacy · 12 October 2026 · Based on PIB (original report)

Must read — 1 past UPSC question on this theme (Prelims GS-1 2024); also a Prelims-style fact (scheme, body, law, agreement or report).

2-minute summary

Indian Naval Ship (INS) Sahyadri arrived in Vladivostok, Russia, on October 12, 2026, to participate in the bilateral maritime exercise INDRA-2026. Exercise INDRA is an ongoing series of joint military exercises between India and Russia, originally initiated in 2003 to strengthen naval cooperation, tactical interoperability, and maritime domain awareness between the two armed forces. INS Sahyadri is an indigenously designed and built Shivalik-class stealth multi-role frigate constructed by Mazagon Dock Shipbuilders Limited (MDL). The deployment underscores India's commitment to naval diplomacy, strategic autonomy, and deep-rooted defence ties with Russia in the Indo-Pacific and Far East maritime regions. Participation in high-seas tactical drills, joint anti-piracy simulations, and cross-deck operational exchanges reinforces the operational readiness of both navies while highlighting India's capability to project blue-water naval power across major global maritime corridors.

Why it's in the news

INS Sahyadri reached Vladivostok, Russia, to participate in the bilateral Exercise INDRA-2026, marking another iteration of maritime security cooperation between the Indian Navy and Russian Navy.

Facts to remember

• Exercise INDRA is a joint bilateral military and maritime exercise conducted between India and Russia, initiated in 2003.
• INS Sahyadri is a Shivalik-class stealth multi-role frigate built indigenously by Mazagon Dock Shipbuilders Limited (MDL) in Mumbai.
• Vladivostok serves as the primary home port of the Russian Navy's Pacific Fleet, situated on the Golden Horn Bay in Russia's Far East.
• Exercise INDRA-2026 was held in October 2026 at Vladivostok, Russia, focusing on maritime interoperability and tactical maneuvers.

Background and context

Bilateral defence cooperation between India and Russia remains a core pillar of their Strategic Partnership, formalised in 2000 and elevated to a 'Special and Privileged Strategic Partnership' in 2010. Exercise INDRA was instituted in 2003 as a bilateral naval exercise and subsequently expanded to include tri-service elements involving ground and air assets. Joint maritime exercises serve multiple strategic objectives: they foster tactical-level interoperability, promote mutual understanding of operational procedures, and enhance capabilities in non-traditional security challenges such as maritime piracy, search and rescue (SAR), and sea-lane protection. The deployment of indigenous platforms like INS Sahyadri to the Russian Far East also projects India's blue-water capability under its Security and Growth for All in the Region (SAGAR) doctrine, while maintaining strategic equilibrium across major maritime zones amidst changing multipolar global security dynamics.

Previous UPSC questions on this theme

• Prelims GS-1 2024 — Which of the following statements about 'Exercise Mitra Shakti-2023' are correct ? 1. This was a joint military exercise between India and Bangladesh. 2. It commenced in Aundh (Pune). 3. Joint response during counter-terrorism operations was a goal of this operation. 4. Indian Air Force was a part of this exercise. Select the answer using the code given below : (a) 1, 2 and 3 (b) 1, 2 and 4 (c) 1, 3 and 4 (d) 2, 3 and 4

Mains practice: Naval diplomacy and joint exercises form an essential pillar of India's strategic posture. In this context, examine the strategic significance of bilateral defence engagements between India and Russia.

Naval diplomacy serves as a instrument of statecraft, enabling nations to build trust, project power, and safeguard maritime sea lines of communication (SLOCs). The arrival of INS Sahyadri in Vladivostok for Exercise INDRA-2026 highlights the ongoing strategic depth of India-Russia defence relations.

Key Strategic Dimensions:

• Bilateral Interoperability & Operational Readiness: Initiated in 2003, Exercise INDRA has evolved from basic naval drills into complex tactical maneuvers. Joint drills enhance operational familiarity between the Indian Navy and Russia's Pacific Fleet in handling anti-piracy, search and rescue, and maritime security operations.

• Defence Technology & Indigenisation Synergy: Deploying indigenously constructed warships such as the Shivalik-class frigate INS Sahyadri (built by Mazagon Dock Shipbuilders Limited) demonstrates India's growing self-reliance under 'Aatmanirbhar Bharat', while maintaining operational ties with Russia, a primary source of critical military hardware.

• Projection of Strategic Autonomy: In an increasingly polarized geopolitical climate, participating in bilateral exercises with Russia alongside engagements with Quad partners illustrates India's policy of multi-alignment and strategic autonomy.

• Far East Regional Engagement: Vladivostok acts as Russia's strategic gateway to the Indo-Pacific. Engagement in this region supports India's 'Act Far East' policy and reinforces the SAGAR (Security and Growth for All in the Region) vision.

Way Forward:

• Operationalise reciprocal logistics access agreements to streamline joint maritime deployments across the Indian Ocean and North-Pacific domains.

• Expand joint exercise scopes to include emergent domain challenges such as cyber-maritime threats and uncrewed naval platform defense.

• Deepen industrial defence co-production under joint venture mechanisms to ensure long-term equipment lifecycle support.

Bilateral defence engagements like Exercise INDRA enable India to maintain strategic stability, enhance blue-water capability, and reinforce a rule-based multipolar maritime order.

Prelims practice questions

Q1. Consider the following statements regarding Exercise INDRA: 1. It is a bilateral military exercise conducted jointly between India and Russia. 2. The exercise was first launched in 2003 to strengthen naval cooperation. 3. It involves joint tactical maneuvers and maritime security drills among participating forces. How many of the above statements are correct?

1. Only one
2. Only two
3. All three
4. None

Answer: C. Statement 1 is correct: Exercise INDRA is a joint bilateral exercise between the armed forces of India and Russia. Statement 2 is correct: It was initiated in 2003 primarily as a bilateral naval exercise. Statement 3 is correct: The exercise involves tactical maneuvers, air defence operations, seamanship drills, and counter-piracy simulations.

Q2. Consider the following statements regarding INS Sahyadri: 1. It is an indigenously built Shivalik-class stealth multi-role frigate. 2. It was constructed by Mazagon Dock Shipbuilders Limited (MDL) in Mumbai. 3. It is powered exclusively by a nuclear reactor propulsion system. Which of the statements given above are correct?

1. 1 and 2 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

Answer: A. Statements 1 and 2 are correct: INS Sahyadri is a Shivalik-class stealth frigate constructed indigenously by MDL in Mumbai. Statement 3 is incorrect: Shivalik-class frigates utilize a Combined Diesel or Gas (CODOG) propulsion system, not nuclear propulsion.

Q3. Which of the following strategically located Russian port cities serves as the primary base for Russia's Pacific Fleet and hosts maritime engagements in the Far East region?

1. The port of Sevastopol on the Crimean peninsula
2. The port of Murmansk on the Kola Bay inlet
3. The port of Arkhangelsk on the White Sea region
4. The port of Vladivostok on the Golden Horn Bay

Answer: D. Vladivostok, situated on the Golden Horn Bay in Russia's Far East, is the major Russian port city that serves as the headquarters and primary base of the Russian Navy's Pacific Fleet.

Revision flashcards

• What is Exercise INDRA and when was it instituted? A joint bilateral military and maritime exercise conducted between India and Russia, initiated in 2003.
• What class of warship is INS Sahyadri and where was it manufactured? An indigenously designed Shivalik-class stealth multi-role frigate, built by Mazagon Dock Shipbuilders Limited (MDL) in Mumbai.
• Where did Indian Naval Ship Sahyadri arrive in October 2026 to participate in Exercise INDRA-2026? Vladivostok, Russia, the primary home port of the Russian Navy's Pacific Fleet.
• Which Indian naval vessel represented India at the bilateral Exercise INDRA-2026 in October 2026? INS Sahyadri, a Shivalik-class stealth frigate.
• Why are bilateral naval exercises like Exercise INDRA strategically important for India? They enhance maritime domain awareness, build tactical interoperability, project blue-water capability, and reinforce India's strategic autonomy through multi-alignment.