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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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INS Aridhaman, nuclear-powered submarine, enters India’s naval fleet

GS3Economy · S&T · Environment · Security· Security forces & agencies· Prelims + Mains·

Why in news

Defence Minister Rajnath Singh commissioned the INS Aridhaman (S4), India's third Arihant-class nuclear-powered submarine, at Visakhapatnam.

Background

The INS Aridhaman (S4) is a nuclear-powered submarine capable of carrying up to 24 K-15 Sagarika missiles or other nuclear-tipped missiles. The project, which began in 2009 as the Advanced Technology Vessel (ATV) project, was executed by the Ship Building Centre (SBC) in Visakhapatnam.

Facts for Prelims

  • FactINS Aridhaman (S4) is the third submarine of the Arihant-class SSBNs.
  • S&TThe submarine is capable of carrying up to 24 K-15 Sagarika missiles.
  • PlaceThe commissioning took place at Visakhapatnam.
  • BodyThe Ship Building Centre (SBC) in Visakhapatnam executed the project.
  • FactThe project originated as the Advanced Technology Vessel (ATV) project in 2009.

For Mains

Q. Examine how the expansion of India's nuclear triad through indigenous submarine construction enhances India's maritime security and strategic autonomy in the Indian Ocean Region.

Dimensions to cover in your answer

  • Strategic deterrence: Strengthening the second leg of the nuclear triad via indigenous SSBN capabilities
  • Indigenization of defense: Transition from the ATV project to domestic production of high-tech naval assets

Keywords: Nuclear Triad · Strategic Deterrence · Maritime Security · Indigenization · SSBN

Read the full news →Report a mistake in this noteSource: The Hindu ↗Also: GS3 · Defence technologyAlso: GS1 · Places in news / mapping

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