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← 13 October 2026's Current Affairs · Defence GA Prelims ★★★★★ Mains ★★☆☆☆

Navy commissions indigenous INS Mangrol

13 October 2026 · ⏱ 2 min read · GS-III: Defence; indigenisation

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Why in News?

INS Mangrol joins the Navy with sonar and torpedoes: the indigenisation link GS-III defence answers need

The Indian Navy has commissioned the indigenously built INS Mangrol, a vessel fitted with sonar and torpedoes for guarding India's coasts.

Why it matters: asked in UPSC 2015; factual, Prelims-type

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What you need to know

2 min read

The Indian Navy has commissioned the indigenously built INS Mangrol, a vessel fitted with sonar and torpedoes for guarding India's coasts.

Sources: Topper IAS editorial (PIB / The Hindu / Indian Express)

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Key facts

Remember these

  • INS Mangrol has been commissioned into the Indian Navy; it is indigenously built.
  • It is fitted with sonar and torpedoes for guarding India's coasts, i.e. an anti-submarine role in coastal waters.
  • Navy vessels are commissioned with the prefix INS (Indian Naval Ship) after acceptance from the builder.
  • Indigenous warship building supports the Atmanirbhar Bharat and Make in India push in defence.
  • Sonar detects underwater objects using sound waves; torpedoes are underwater weapons used against submarines and ships.
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Prelims · Mains

How the exam will ask it

Prelims

  • INS Mangrol is an indigenously built vessel of the Indian Navy equipped with sonar and torpedoes for coastal defence.
  • Sonar uses sound propagation to detect and locate objects underwater, which is why it is central to anti-submarine warfare.
  • Commissioning is the formal induction of a ship into naval service, after which it is prefixed INS.

Mains

GS-III (Defence, Security): India's long coastline and shallow-water approaches demand dedicated anti-submarine and coastal defence assets. Indigenous construction of vessels like INS Mangrol advances defence indigenisation under Atmanirbhar Bharat, cutting import dependence and building the domestic shipbuilding base. The way forward is timely delivery, indigenous sensors and weapons, and sustained maritime surveillance.

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PYQ connection

A question UPSC has already asked on this

🔁 UPSC PYQ CONNECTION · UPSC CSE 2015

The term 'IndARC', sometimes seen in the news, is the name of

  1. an indigenously developed radar system inducted into Indian Defence
  2. India's satellite to provide services to the countries of Indian Ocean Rim
  3. a scientific establishment set up by India in Antarctic region
  4. India's underwater observatory to scientifically study the Arctic region
Show answer

Answer: D

Why this matters: today's issue is directly connected to a concept UPSC has already tested. Read the story with this question in mind.

Practise this PYQ →
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Quick recall

Answer before you reveal

Before a new metro rail line or section in India is opened to passengers, safety clearance is given by which authority?

  1. Research Designs and Standards Organisation
  2. Railway Board
  3. Bureau of Indian Standards
  4. Commissioner of Metro Rail Safety
Show answer

Answer: D — Commissioner of Metro Rail Safety is the answer: the CMRS inspects a new metro section and authorises it for passenger service, which is why its observations on the Pink Line must be addressed first.

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