The K-5 missile is a next-generation long-range Submarine-Launched Ballistic Missile (SLBM) under development by India’s Defence Research and Development Organisation (DRDO), envisioned to significantly elevate the country’s sea-based nuclear strike capability. As the successor to the K-4 and a bridge to the ultra-long-range K-6, the K-5 missile is expected to deliver a formidable range of 5,000–6,000 km, enabling Indian SSBNs to engage high-value strategic targets from secure and concealed patrol zones deep within the Indian Ocean.

Engineered with advanced solid-fuel propulsion, improved navigation systems, and the potential for MIRV (Multiple Independently Targetable Reentry Vehicle) capabilities, the missile is poised to enhance both accuracy and strike flexibility. The K-5 missile will be deployed on the upcoming S5-class ballistic missile submarines, marking a major leap in India’s second-strike credibility. Once operational, the K-5 missile will strengthen regional deterrence, expand India’s strategic reach, and reinforce the resilience of its nuclear triad by ensuring a survivable and assured retaliatory capability.

 Overview of K-5 Missile

Development Background of K-5 Missile

The K-5 missile is part of India’s classified ‘K-Series’ SLBM program, developed by the Defence Research and Development Organisation (DRDO).
Its development aims to create a submarine-launched missile with near-intercontinental capability, bridging the gap between K-4 and the future K-6 missile.

Role in India’s Nuclear Triad of K-5 Missile

K-5 significantly strengthens the sea leg of India’s nuclear triad, offering:

• Survivability against first-strike

• Flexibility in deployment

• Greater strike radius from ocean patrol zones

• A more secure nuclear deterrence posture

Features of K-5 Missile SLBM

• Type: Ballistic Missile Launched by Submarine (SLBM)

• Range: Estimated 5,000 – 6,000 km (long-range)

• Warhead Capacity: Capable of carrying a nuclear payload
  

• Launch Platform: Arihant-class and future S5-class nuclear submarines
  

• Guidance System: Advanced inertial navigation with satellite updates
  

• Accuracy: High accuracy with modern MIRV compatibility (expected)
  

• Stage Configuration: Likely three-stage, solid-fuel propulsion

• Stealth Features: Can be launched from underwater, ensuring low detectability
  

• Payload Capacity: Heavier payload compared to earlier SLBMs

Advantages of K-5 Missile

• Significant Range Upgrade: Provides India with near-intercontinental strike capability from submarines.

• Strengthens Second-Strike Capability: Enhances survivability of India’s nuclear deterrent.

• Hard to Detect: Submarine-based missiles ensure stealth and mobility, reducing tracking risks.

• Improved Accuracy: High precision improves strategic impact.

• Deterrence Through MIRV: Potential for multiple warheads increases effectiveness against defended targets.

• Extended Operational Depth: Can be launched from deeper underwater positions.

Limitations of K-5 Missile

• Still Under Development: No official confirmation of deployment status.

• High Cost: Submarine and missile programs demand significant financial resources.

• Dependent on Submarine Availability: Full capability relies on new S5-class SSBNs.

• Technical Complexity: MIRV integration, underwater launch stability, and long-range accuracy require advanced technology.

• Limited Launch Platforms: Only select submarines are capable of carrying longer SLBMs.

Operations of K-5 Missile SLBM

• Primary Role: Strategic, long-range nuclear deterrent

• Launch Mode: Underwater launch from SSBNs using the submarine’s vertical launch system

• Mission Profile:
  

  • Ensures capability of second-strike
    

  • Targets strategic assets at long distances

  • Operates silently within oceanic patrol zones

• Strategic Use:

  • Maintains credible minimum deterrence
    

  • Enhances India’s nuclear triad

• Controlled by: Strategic Forces Command (SFC)

Future Prospects of K-5 Missile

• Potential transition to MIRV capability

• Integration into new-generation SSBNs
  

• Development continuity leading to K-6 missile, expected with >8,000 km range

• Strengthening India’s long-term nuclear strategy

Conclusion

The K-5 missile stands as a critical milestone in India’s pursuit of a stronger and more resilient sea-based nuclear deterrent. With its long-range strike capability, advanced guidance systems, and compatibility with the upcoming S5-class SSBNs, the K-5 missile significantly enhances India’s strategic depth and second-strike assurance. As part of the evolving K-series, it bridges the gap between medium-range and future intercontinental SLBMs, reinforcing India’s position as a responsible yet formidable maritime power. Once operational, the K-5 missile will play a central role in securing the nation’s long-term strategic interests and strengthening security across the Indo-Pacific region. For more information about missiles visit Educationn Masters.