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Varunastra UPSC NOTE



  • The Varunastra is an Indian advanced heavyweight anti-submarine torpedo.

  • Developed by Naval Science and Technological Laboratory (NSTL) of the Defence Research and Development Organisation (DRDO) for the Indian Navy.

  • It is named after a legendary weapon created by the Hindu god of the oceans, Varuna.

  • The ship launched variant of Varunastra torpedo was formally inducted in the Indian navy in 2016.

  • It will become the mainstay of anti-submarine torpedo for all Naval warships.

Torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target.


  • This torpedo is powered by an electric propulsion system with multiple 250 KWs silver oxide zinc (AgOZn) batteries. 

  • It can achieve speeds in excess of 40 kn (74 km/h), weighs around 1.5 tonnes and can carry 250 kg (550 lb) of conventional warhead.

  • Varunastra has conformal array transducer which enables it look at wider angles than most common torpedoes. 

  • It is the only torpedo in the world to have a GPS-based locating aid.


  • It also has an advanced autonomous guidance algorithms with low drift navigational aids, insensitive warhead which can operate in various combat scenarios. 



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Varunastra UPSC NOTE
Varunastra UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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