What is the common examiner trap about Security & Defence in UPSC exams?

Confusing the number of ships: INS Dunagiri is the 5th Project 17A frigate, NOT the 1st; INS Sanshodhak is 4th Sandhayak class, NOT Arnala class; INS Agray is 4th Arnala class, NOT survey ship. Also World Hydrography Day is June 21, not June 23 (commissioning date).

What should UPSC aspirants remember about Security & Defence for Prelims?

1. Target this Data: Second tri-commissioning in 17 months (after first in Mumbai in 2025) 2. Target this Nodal Body: Garden Reach Shipbuilders & Engineers (GRSE) – Ministry of Defence 3. Target this Legal Point: Project 17A frigate programme (defence procurement under MoD)

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Indian Navy Commissions INS Dunagiri, Sanshodhak, Agray; Tri-Commissioning Shows Faster Warship Building

Q: Which shipbuilding company under the Ministry of Defence built the three vessels commissioned at the Kolkata ceremony?

Garden Reach Shipbuilders & Engineers, The article explicitly mentions GRSE as a long-standing and trusted partner of the Indian Navy and the builder of these vessels.

Q: Consider the following statements: 1. INS Dunagiri is the fifth warship under the Project 17A frigate programme and was built in about 33% less time than previous frigates. 2. INS Sanshodhak is the fourth anti-submarine warfare shallow water craft of the Arnala class. 3. The tri-commissioning ceremony in Kolkata was the second such event in 17 months. Which of the statements given above is/are correct?

Both 1 and 3, Statement 1 is correct as per the article. Statement 2 is incorrect because INS Sanshodhak is a hydrographic survey vessel of the Sandhayak class, not an ASW craft of Arnala class. Statement 3 is correct: the article states this is the second tri-commissioning in 17 months. Hence option B is correct.

Q: According to the Navy Chief, how much less time did it take to build INS Dunagiri compared to vessels under the previous frigate programme?

33%, The article states that INS Dunagiri was built in about 33 per cent less time than vessels under the previous frigate programme.

Q: What is the primary purpose of INS Sanshodhak as mentioned in the news?

Hydrographic survey and mapping, The article describes INS Sanshodhak as the fourth hydrographic survey vessel of the Sandhayak class with advanced hydrographic equipment to support Blue Economy and partner nations.

Security & Defence Science & Tech InfrastructureHIGH

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link

23 Jun 2026

~2 min

Source: Indian Express

Key Data:33% less time17 months5th Project 17A frigate4th Sandhayak class4th Arnala classWorld Hydrography Day June 21

Bodies:Indian NavyMinistry of DefenceGarden Reach Shipbuilders & Engineers (GRSE)Prime Minister's Office

Practice MCQs from today's news ▸

~2 min · Quick mode

What This Article Covers

1.Indian Navy commissioned three frontline platforms – INS Dunagiri (5th Project 17A frigate), INS Sanshodhak (4th Sandhayak-class survey vessel), and INS Agray (4th Arnala-class ASW craft) – at a Kolkata ceremony on June 23, 2026, with PM Modi present.

2.INS Dunagiri was built 33% faster than previous frigates; the tri-commissioning is the second such event in 17 months, reflecting accelerated indigenisation and modernisation.

3.INS Sanshodhak was commissioned on World Hydrography Day to support Blue Economy and MAHASAGAR vision; INS Agray exemplifies public-private partnership in defence shipbuilding.

The Big Picture

Prelims · HighMains · Medium

India’s warship-building capability is accelerating with the triple commissioning of INS Dunagiri (Project 17A frigate), INS Sanshodhak (hydrographic survey), and INS Agray (anti-submarine warfare craft) in Kolkata, attended by PM Modi. This second tri-commissioning in 17 months highlights 33% faster construction timelines and the Navy’s push for self-reliance, public-private partnerships, and the MAHASAGAR vision. For exams, focus on the platforms, their classes, and the strategic implications for India’s maritime strength.

Exam Lens

Quick Exam Facts From News

Tri-commissioning DateJune 23, 2026

Second Tri-commissioning In17 months

INS Dunagiri Build Time Reduction33% less than previous frigate programme

World Hydrography DayJune 21 (commissioning on June 23)

INS Sanshodhak Class4th Sandhayak-class hydrographic survey vessel

INS Agray Class4th Arnala-class anti-submarine warfare shallow water craft

ShipbuilderGarden Reach Shipbuilders & Engineers (GRSE)

1-Minute Revision

›Tri-commissioning Date: June 23, 2026
›Second Tri-commissioning In: 17 months
›Target this Data: Second tri-commissioning in 17 months (after first in Mumbai in 2025)
›Target this Nodal Body: Garden Reach Shipbuilders & Engineers (GRSE) – Ministry of Defence
›Target this Legal Point: Project 17A frigate programme (defence procurement under MoD)

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News Snapshot

🚢

INS Dunagiri – Project 17A Frigate

Fifth frigate under Project 17A, built 33% faster, equipped with latest combat capabilities.

📡

INS Sanshodhak – Hydrographic Survey Vessel

Fourth Sandhayak-class survey ship, commissioned on World Hydrography Day to bolster Blue Economy and partner nations' maritime capabilities.

🤝

INS Agray – ASW Shallow Water Craft

Fourth Arnala-class anti-submarine warfare craft, built via public-private partnership, reducing construction timelines.

Detailed Analysis & Strategic Depth

Context / Background

India’s naval modernisation is driven by the need to secure sea lanes and project power in the Indian Ocean Region. Project 17A frigates (stealth, advanced sensors) and the Sandhayak/Arnala classes are part of a planned 200-ship navy. The tri-commissioning in Kolkata, at GRSE, underscores the government’s 'Make in India' push in defence shipbuilding.

Core Analysis & Implications

The second tri-commissioning in 17 months signals a significant acceleration in warship production. INS Dunagiri’s 33% reduction in construction time is attributed to modular building techniques and improved project management. The involvement of private shipyards for INS Agray shows a successful PPP model, enabling better resource utilisation. The commissioning of INS Sanshodhak on World Hydrography Day emphasises the strategic importance of hydrographic data for navigation, maritime boundary demarcation, and Blue Economy.

Future Outlook / Way Forward

Remaining Project 17A ships (2 more) and follow-on programmes (Project 17B) will likely continue the trend of faster, indigenous construction. The MAHASAGAR vision, which focuses on maritime security and growth with partner nations, will benefit from enhanced hydrographic capabilities and ASW assets. Public-private partnerships may expand further in defence shipbuilding, improving efficiency and reducing dependence on imports.

Key Facts at a Glance

Tri-commissioning DateJune 23, 2026

Second Tri-commissioning In17 months

INS Dunagiri Build Time Reduction33% less than previous frigate programme

World Hydrography DayJune 21 (commissioning on June 23)

INS Sanshodhak Class4th Sandhayak-class hydrographic survey vessel

INS Agray Class4th Arnala-class anti-submarine warfare shallow water craft

ShipbuilderGarden Reach Shipbuilders & Engineers (GRSE)

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Practice exam-style questions based on this article.

Q1Static LinkageEasyUPSC, SSC, Banking

Which shipbuilding company under the Ministry of Defence built the three vessels commissioned at the Kolkata ceremony?

Q2Statement-basedHardUPSC, SSC

Consider the following statements:

1. INS Dunagiri is the fifth warship under the Project 17A frigate programme and was built in about 33% less time than previous frigates.

2. INS Sanshodhak is the fourth anti-submarine warfare shallow water craft of the Arnala class.

3. The tri-commissioning ceremony in Kolkata was the second such event in 17 months.

Which of the statements given above is/are correct?

Q3Data-centricMediumUPSC, SSC, Banking

According to the Navy Chief, how much less time did it take to build INS Dunagiri compared to vessels under the previous frigate programme?

Q4Application/ImpactMediumUPSC, SSC

What is the primary purpose of INS Sanshodhak as mentioned in the news?

All 25 MCQs ▸

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Indian Navy Commissions INS Dunagiri, Sanshodhak, Agray; Tri-Commissioning Shows Faster Warship Building

Exam Lens

Quick Exam Facts From News

1-Minute Revision

News Snapshot

INS Dunagiri – Project 17A Frigate

INS Sanshodhak – Hydrographic Survey Vessel

INS Agray – ASW Shallow Water Craft

Detailed Analysis & Strategic Depth

Context / Background

Core Analysis & Implications

Future Outlook / Way Forward

Prelims Flashpoints

Key Facts at a Glance