K-4 missile test
- Background: India tested the K-4 intermediate-range ballistic missile from the INS Arihaat submarine.
- Significance: Bringing India’s sea-based nuclear deterrence capability into operation.
- K-4 Missile Features:
- This is a solid-fueled K-4 ballistic missile.
- It is capable of striking targets up to 3,500 km away.
- It can carry a nuclear warhead payload of up to 2 tons.
INS Arihant
- Submarine: INS Arihaat, India’s second nuclear-powered ballistic missile submarine (SSBN).
- Weight: 6,000 tons
- Predecessor: INS Arihant (fully commissioned in 2018).
- It is equipped only with K-15 missiles, which have a range of 750 km.

