About INS Shalki:
- It is a Shishumar-class diesel-electric submarine.
- It is also the first-ever submarine that was built in India.
- It was constructed under licence by the Mazgaon Dock Limited in Mumbai.
- It was commissioned into the Indian Navy on 7 February 1992.
- Specifications:
- It has a 6.5 m (21 ft) beam, 6 m (20 ft) draught, and is 64.4 m (211 ft) in length.
- It carries40 people on board including 8 officers.
- The displacement of INS Shalki is 1450 tons on surfaces, 1850 tons submerged.
- Its range is snorting 8,000 nautical miles (15,000 km) at 8 kn (15 km/h).
- The speed ranges from 11 knots surfaced (i.e., 20 km/h) and 22 knots submerged (41 km/h).
Q1: What is INS Arighat (S3)?
It is an upgraded variant of the Arihant-class submarine. It is the second nuclear-powered ballistic missile submarine being built by India under the Advanced Technology Vessel (ATV) project. It can accommodate more K4 missiles than S2.
Source: Indian Navy submarine INS Shalki arrives in Colombo for formal visit
Last updated on Sep, 2026
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