• On November 28, 2024, the Indian Navy successfully tested the K-4 ballistic missile from its newly inducted nuclear-powered submarine, INS Arighaat.
  • The test was conducted in the Bay of Bengal and is considered a significant achievement in enhancing India’s defense capabilities.
  • The K-4 missile, which has a range of 3,500 kilometers, plays a key role in strengthening India’s nuclear deterrence and validating its second-strike capability—the ability to retaliate with nuclear weapons after being attacked.

IMPORTANCE OF THE TEST

  • Missile Test: The test marks a crucial milestone for India's nuclear triad, which includes land-based, air-based, and sea-based nuclear strike capabilities.
  • The success of the K-4 missile adds to India's ability to respond effectively to a nuclear attack.
  • Test Results: According to defense sources, the results of the test are being analyzed thoroughly.
  • Briefings will be presented to India’s top military and political leadership to evaluate the missile’s performance and its implications for national security.

THE K 4 BALLISTIC MISSILE

  • Design and Capabilities: The K-4 missile is designed for launch from underwater platforms, such as nuclear-powered submarines. It is a key asset in India’s defense arsenal.
    • Range: The missile has a range of 3,500 kilometers, allowing it to strike distant targets from underwater.
    • Development: The Defence Research and Development Organisation (DRDO) conducted extensive trials before the full-range test, ensuring the missile meets operational standards.
    • The successful test ensures that the missile is ready for operational use, contributing to India’s strategic nuclear deterrence.

ABOUT INS ARIGHAAT

  • Induction: INS Arighaat was commissioned into the Indian Navy in August 2024, marking a major milestone for India’s naval defense capabilities. It is based at the Ship Building Centre in Vishakhapatnam.
  • Upgraded Capabilities: INS Arighaat is equipped with K-4 missiles, which have a range of over 3,500 km, significantly more than the K-15 missiles fitted on the previous submarine, INS Arihant (which has a range of around 750 km).
  • Advanced Technology: INS Arighaat is equipped with more powerful missile systems and advanced technology than its predecessor, INS Arihant.
  • This makes INS Arighaat a much stronger and more versatile addition to India’s nuclear-powered submarine fleet.
  • Strategic Importance: The submarine’s enhanced capabilities provide India with greater flexibility and strength in its strategic defense posture and nuclear deterrence.

INDIA’S NUCLEAR SUBMARINE FLEET

  • INS Arihant: India’s first indigenously built nuclear-powered ballistic missile submarine, INS Arihant, was commissioned in 2018. This was a significant step in enhancing India’s nuclear deterrence
  • Upcoming Submarine: The third vessel in this class is expected to be inducted into the Indian Navy next year, further strengthening India’s position as a major nuclear power.

ROLE OF INS ARIGHAAT IN INDIA’S DEFENCE STRATEGY

  • Defense Minister’s Remarks: Rajnath Singh, India’s Defense Minister, highlighted that INS Arighaat is a testament to India’s technological capabilities and the government’s Atma Nirbharta (self-reliance) initiative in defense.
  • Strategic Deterrence: The presence of INS Arighaat alongside INS Arihant strengthens India’s ability to deter potential adversaries and protect its national interests. Both submarines enhance India’s capability to launch retaliatory nuclear strikes from sea-based platforms, which is crucial for ensuring a credible and effective nuclear deterrent.