India and Sri Lanka are conducting SLINEX-26, the 13th edition of their annual bilateral maritime exercise, at Visakhapatnam from 17 to 21 September 2026. The Indian Navy has deployed INS Kavaratti, an indigenously built anti-submarine warfare corvette, and the fleet tanker INS Jyoti, while the Sri Lanka Navy is represented by SLNS Sindurala. The exercise has a harbour phase and a sea phase, and is conducted under the Eastern Naval Command. It advances India's MAHASAGAR maritime vision for the Indian Ocean region.
The Indian Navy and the Sri Lanka Navy began the 13th edition of their annual bilateral maritime exercise, SLINEX-26, at Visakhapatnam. India fielded INS Kavaratti, an indigenously built anti-submarine warfare corvette, and the fleet tanker INS Jyoti. Sri Lanka sent SLNS Sindurala. The harbour phase opened with a ceremony and reception on board INS Kavaratti, after which the two navies moved into coordinated drills at sea.
The exercise runs from 17 to 21 September 2026 at Visakhapatnam on India's eastern seaboard. Visakhapatnam is the headquarters of the Eastern Naval Command, which is conducting the harbour phase. The location places the exercise on the Bay of Bengal side of the Indian Ocean, along the sea lanes that connect the Malacca Strait to India's east coast ports.
SLINEX was conceptualised in 2005 and has grown from a limited naval contact programme into a structured annual exercise with distinct harbour and sea phases. Over two decades it has widened from basic seamanship drills to coordinated operations, reflecting the steady growth of the India–Sri Lanka defence relationship. The 2026 edition, the 13th, continues that trajectory by hosting the Sri Lanka Navy at the Eastern Naval Command.
India maintains the densest exercise calendar of any Indian Ocean littoral state, running bilateral naval exercises with Sri Lanka, Bangladesh, Indonesia, Singapore, Thailand, Oman, France, Japan, Russia and the United States, alongside multilateral formats. Most other Indian Ocean navies, including Sri Lanka's, operate far smaller fleets and rely on such partnerships for training access and capacity building, which gives India a structural advantage as a regional security provider.
Core Concept: India's Maritime Neighbourhood Strategy in the Indian Ocean
Q1. SLINEX is a bilateral maritime exercise between India and which country? [Easy]
A) Bangladesh
B) Sri Lanka
C) Maldives
D) Indonesia
Answer: B
Explanation: SLINEX is the annual bilateral maritime exercise between the Indian Navy and the Sri Lanka Navy.
Q2. SLINEX-26 was hosted at which Indian city? [Easy]
A) Kochi
B) Mumbai
C) Visakhapatnam
D) Port Blair
Answer: C
Explanation: The 2026 edition was conducted at Visakhapatnam from 17 to 21 September 2026.
Q3. Which Indian Navy ship in SLINEX-26 is an indigenously built anti-submarine warfare corvette? [Moderate]
A) INS Jyoti
B) INS Vikrant
C) SLNS Sindurala
D) INS Kavaratti
Answer: D
Explanation: INS Kavaratti is the indigenously built anti-submarine warfare corvette that hosted the opening ceremony of the harbour phase.
Q4. SLINEX-26 was which edition of the exercise? [Moderate]
A) 11th
B) 12th
C) 13th
D) 14th
Answer: C
Explanation: The 2026 exercise at Visakhapatnam was the 13th edition of SLINEX.
Q5. The Sri Lanka Navy ship that participated in SLINEX-26 was: [Moderate]
A) SLNS Sindurala
B) SLNS Sayura
C) SLNS Gajabahu
D) SLNS Samudura
Answer: A
Explanation: SLNS Sindurala represented the Sri Lanka Navy in the 2026 edition of the exercise.
Q6. SLINEX was conceptualised in which year? [Tricky]
A) 2005
B) 2010
C) 2015
D) 1995
Answer: A
Explanation: The exercise was conceptualised in 2005 and has since grown into a structured annual engagement.
Q7. In India's maritime vision, MAHASAGAR stands for: [Tricky]
A) Maritime Advancement and Harmony for Southern Asian Growth and Regional Amity
B) Mutual and Holistic Advancement for Security and Growth Across Regions
C) Maritime Highway and Safe Anchorage for Growth Across Regions
D) Mutual Assistance for Harbour, Shipping and Growth Across Regions
Answer: B
Explanation: MAHASAGAR stands for Mutual and Holistic Advancement for Security and Growth Across Regions, and SLINEX-26 is aligned with it.
Q8. Which of the following pairs is NOT correctly matched? [Tricky]
A) SLINEX — India and Sri Lanka navies
B) Mitra Shakti — India and Sri Lanka armies
C) Eastern Naval Command — Visakhapatnam
D) Southern Naval Command — Mumbai
Answer: D
Explanation: The Southern Naval Command is headquartered at Kochi; Mumbai hosts the Western Naval Command.
PYQ 1:
Visakhapatnam is the headquarters of which command of the Indian Navy?
A) Western Naval Command
B) Eastern Naval Command
C) Southern Naval Command
D) Andaman and Nicobar Command
Answer: B
Explanation: The Eastern Naval Command is headquartered at Visakhapatnam and conducted the harbour phase of SLINEX-26.
PYQ 2:
Consider the following statements:
SLINEX-26 was the 13th edition of the exercise.
SLINEX-26 comprised a harbour phase and a sea phase.
SLINEX was conceptualised in 2015.
Which of the above statements is/are correct?
A) 1 only
B) 1 and 2 only
C) 2 and 3 only
D) All of the above
Answer: B
Explanation: Statements 1 and 2 are correct. Statement 3 is wrong because SLINEX was conceptualised in 2005.
PYQ 3:
Match List I with List II:
List I (Exercise)
SLINEX
JIMEX
Varuna
Malabar
List II (Partner)
A. Sri Lanka
B. Japan
C. France
D. Multilateral exercise including the United States, Japan and Australia
Select the correct answer:
A) 1-A, 2-B, 3-C, 4-D
B) 1-B, 2-A, 3-C, 4-D
C) 1-A, 2-C, 3-B, 4-D
D) 1-D, 2-B, 3-C, 4-A
Answer: A
Explanation: SLINEX is with Sri Lanka, JIMEX with Japan, Varuna with France, and Malabar is the multilateral exercise involving India, the United States, Japan and Australia.
Question 1 (150 words): Naval exercises with immediate maritime neighbours are central to India's Indian Ocean strategy. Discuss with reference to SLINEX.
India's security in the Indian Ocean depends less on force levels than on whether neighbouring navies can work with the Indian Navy at short notice, and SLINEX is the instrument that builds exactly that capacity with Sri Lanka.
SLINEX-26, the 13th edition, was held at Visakhapatnam from 17 to 21 September 2026 with INS Kavaratti and INS Jyoti on the Indian side and SLNS Sindurala on the Sri Lankan side. Its two-part structure matters: the harbour phase builds professional and personal familiarity through cross-deck visits and the exchange of best practices, while the sea phase tests coordinated manoeuvres in real conditions.
Because Sri Lanka lies across the main east–west shipping lanes, this familiarity translates directly into faster joint responses to search and rescue, disaster relief and maritime crime.
India should now expand such engagement into shared maritime domain awareness, so that cooperation continues between exercise editions rather than only during them.
Question 2 (250 words): Examine India's maritime engagement with its Indian Ocean neighbours and assess how far exercises like SLINEX advance the objectives of the MAHASAGAR vision.
India's maritime engagement with its neighbours has evolved from occasional goodwill visits into a structured architecture of exercises, capacity building, hydrographic assistance and coastal surveillance support. SLINEX, conceptualised in 2005 and now in its 13th edition, is one of the oldest strands of that architecture.
The doctrinal frame has also matured. India first articulated SAGAR — Security and Growth for All in the Region — as its Indian Ocean approach, and later widened it into MAHASAGAR, Mutual and Holistic Advancement for Security and Growth Across Regions, which extends the same logic of shared security and shared growth to the wider Global South.
SLINEX-26 shows how the doctrine is operationalised. Held at Visakhapatnam from 17 to 21 September 2026 under the Eastern Naval Command, it paired INS Kavaratti, an indigenously built anti-submarine warfare corvette, and the fleet tanker INS Jyoti with SLNS Sindurala. The harbour phase built professional familiarity; the sea phase built interoperability. Anti-submarine warfare practice is particularly relevant as extra-regional submarine activity in the Indian Ocean grows.
The limits are equally clear. Exercises build habits, not capabilities; Sri Lanka's fleet remains small, and competing external offers of infrastructure and credit give Colombo alternatives. Regional groupings such as the Colombo Security Conclave still lack enforcement machinery.
The way forward lies in converting episodic exercises into permanent shared maritime domain awareness, joint training pipelines and co-development of small platforms, so that MAHASAGAR is measured in delivered capability rather than in declarations.