
1) Weapon in Hindu mythology 2) Weapon of India
Found on
https://www.crosswordclues.com/clue/varunastra

The Varunastra (Sanskrit वरुणास्त्र) is the water weapon (a storm) according to the Indian scriptures, incepted by Varuna. In stories it is said to assume any weapon`s shape, just like water. As per the Indian legends or Puranas this weapon is said to have been obtained by great warrior characters such as Arjuna, Satyaki, Dhri....
Found on
http://en.wikipedia.org/wiki/Varunastra
No exact match found.