Varunastra:
Varunastra is an indigenously developed heavyweight anti-submarine torpedo developed by Naval Science and Technological Laboratory (NSTL) of the DRDO which was recently inducted into the Indian Navy.
It's a heavyweight anti-submarine torpedo developed by Naval Science and Technological Laboratory (NSTL), a premier laboratory of DRDO. It's weight around 1.25 tonnes that carries about 250 kg of explosives at a speed of around 40 nautical miles an hour.
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