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INS Arnala

09 Feb 2026 GS 3 Defence
INS Arnala Click to view full image

About

  • INS Arnala is the first indigenously designed and built Anti-Submarine Warfare Shallow Water Craft (ASW-SWC) of the Indian Navy.

  • Marks a decisive shift from a “Buyer’s Navy” to a “Builder’s Navy”.

  • Reinforces the Aatmanirbhar Bharat vision in defence manufacturing.

First-of-its-kind shallow water combatant

  • INS Arnala is the lead ship of a new ASW-SWC class.

  • Designed specifically for:

    • Coastal and shallow waters

    • Environments with complex underwater acoustics that complicate submarine detection

  • Role:

    • Detecting, tracking, and neutralising submarine threats close to the shoreline

    • Strengthening India’s littoral and coastal maritime security

Indigenous design and construction

  • Designed and built by Garden Reach Shipbuilders & Engineers (GRSE).

  • Built under a Ministry of Defence programme to boost indigenous defence production.

  • Over 80% indigenous content, reflecting:

    • Strong PSU–private sector collaboration

    • Extensive participation of MSMEs

    • Indigenous combat systems, sensors, and specialised equipment

Symbol of maritime heritage

  • Named after Arnala Fort, located off Vasai, Maharashtra.

  • Continues the Navy’s tradition of linking ships with India’s maritime history.

  • Represents continuity between heritage and modern naval capability.

Prelims Practice MCQs

Q. INS Arnala, recently inducted into the Indian Navy, is best described as:

A. A nuclear-powered attack submarine
B. An aircraft carrier escort destroyer
C. An Anti-Submarine Warfare Shallow Water Craft
D. A long-range missile corvette

Correct answer: C

Explanation:
INS Arnala is India’s first indigenously built ASW Shallow Water Craft, meant for coastal operations.

Q. With reference to INS Arnala, consider the following statements:

  1. It has been designed and built entirely in India.

  2. It has more than 80% indigenous content.

  3. It was built by Mazagon Dock Shipbuilders Limited.

Which of the statements given above are correct?

A. 1 and 2 only
B. 2 only
C. 1 and 3 only
D. 1, 2 and 3

Correct answer: A

Explanation:

  • Statements 1 and 2: Correct.

  • Statement 3: Incorrect — it was built by GRSE, not MDL.



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