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Topic 148 · Defence & Security

Navy commissions Mahendragiri and Malvan

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Revise the 12 points first Book 1 RATNA
  1. Core Trigger: INS Mahendragiri, sixth Project 17A stealth frigate, was commissioned at Visakhapatnam on 11 July 2026; INS Malvan followed at Karwar on 22 July.
  2. Builders: Mahendragiri was built by Mazagon Dock, Mumbai, to a Warship Design Bureau design; Malvan by Cochin Shipyard.
  3. Current Head: Defence Minister Rajnath Singh commissioned Mahendragiri; Air Chief Marshal A.P. Singh presided over Malvan.
  4. Crest: Malvan's crest shows a Bagh Nakha, a tiger's claw, with the motto 'Silent Claws'.
  5. Data: Mahendragiri displaces about 6,670 tonnes, has a top speed of 28 knots and over 75% indigenous content.
  6. Stakeholders: Malvan is the sixth of 16 anti-submarine shallow water craft; on 21 June 2026 the PM commissioned Dunagiri, Sanshodhak and Agray at Kolkata.
  7. India Link: P17A frigates were ordered as four from Mazagon Dock and three from GRSE, showing indigenous warship-building.
  8. Venue: Mahendragiri joined the Eastern Fleet at Visakhapatnam.
  9. Founded: INS Nilgiri, the lead P17A frigate, was commissioned on 15 January 2025 at Mumbai.
  10. Landmark: Udaygiri and Himgiri, from two yards, were commissioned together on 26 August 2025, a first for frontline combatants.
  11. Class Basis: Project 17A frigates are follow-ons to the Project 17 (Shivalik) class with CODOG propulsion.
  12. Key Term: Commissioning is formal induction of a warship into active service; ASW-SWC means a coastal submarine-hunting craft.
Question 1 of 10

Which sixth Project 17A stealth frigate was commissioned at Visakhapatnam on 11 July 2026?

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Answer: (C) INS Mahendragiri

Core Trigger: INS Mahendragiri, sixth Project 17A stealth frigate, was commissioned at Visakhapatnam on 11 July 2026; INS Malvan followed at Karwar on 22 July.From Book 1 RATNA, topic 148, point 1

Question 2 of 10

Which yard built INS Malvan?

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Answer: (D) Cochin Shipyard

Builders: Mahendragiri was built by Mazagon Dock, Mumbai, to a Warship Design Bureau design; Malvan by Cochin Shipyard.From Book 1 RATNA, topic 148, point 2

Question 3 of 10

Who commissioned INS Mahendragiri?

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Answer: (A) Defence Minister Rajnath Singh

Current Head: Defence Minister Rajnath Singh commissioned Mahendragiri; Air Chief Marshal A.P. Singh presided over Malvan.From Book 1 RATNA, topic 148, point 3

Question 4 of 10

INS Malvan's crest shows which symbol, with the motto 'Silent Claws'?

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Answer: (C) Bagh Nakha, a tiger's claw

Crest: Malvan's crest shows a Bagh Nakha, a tiger's claw, with the motto 'Silent Claws'.From Book 1 RATNA, topic 148, point 4

Question 5 of 10

Consider INS Mahendragiri. 1. It displaces about 4,670 tonnes. 2. It has a top speed of 28 knots and over 75% indigenous content. Which is/are correct?

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Answer: (B) Only 2

Data: Mahendragiri displaces about 6,670 tonnes, has a top speed of 28 knots and over 75% indigenous content.From Book 1 RATNA, topic 148, point 5

Question 6 of 10

INS Malvan is the sixth of how many anti-submarine shallow water craft?

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Answer: (C) 16

Stakeholders: Malvan is the sixth of 16 anti-submarine shallow water craft; on 21 June 2026 the PM commissioned Dunagiri, Sanshodhak and Agray at Kolkata.From Book 1 RATNA, topic 148, point 6

Question 7 of 10

Which command or fleet did INS Mahendragiri join at Visakhapatnam?

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Answer: (D) Eastern Fleet

Venue: Mahendragiri joined the Eastern Fleet at Visakhapatnam.From Book 1 RATNA, topic 148, point 8

Question 8 of 10

INS Nilgiri, the lead Project 17A frigate, was commissioned at which port on 15 January 2025?

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Answer: (A) Mumbai

Founded: INS Nilgiri, the lead P17A frigate, was commissioned on 15 January 2025 at Mumbai.From Book 1 RATNA, topic 148, point 9

Question 9 of 10

INS Udaygiri and INS Himgiri, built at two yards, were commissioned together on which date?

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Answer: (A) 26 August 2025

Landmark: Udaygiri and Himgiri, from two yards, were commissioned together on 26 August 2025, a first for frontline combatants.From Book 1 RATNA, topic 148, point 10

Question 10 of 10

Project 17A frigates are follow-ons to which earlier class?

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Answer: (D) Project 17 (Shivalik) class

Class Basis: Project 17A frigates are follow-ons to the Project 17 (Shivalik) class with CODOG propulsion.From Book 1 RATNA, topic 148, point 11

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