Overview
appears as a personification of the first weapon ever created according to Hindu epics. 'Asi' means 'sword'. A legend concerning Asi appears in the Shanti Parva book of the Mahabharata. In Rigvedic Sanskrit Asi is still used as a term for a kind of sacrificial dagger or knife.
Legend
Out of curiosity Nakula, the fourth son of Pandu and the master of swordsmanship questioned the Kuru grandsire Bhishma on his arrow death bed as to which was the best weapon in all kinds of fighting. In his own personal views Nakula thought the sword to be the most superior since even on having lost one's bow, horse and the chariot, a skillful swordsman could still defend himself against the mace and spear wielders. Nakula further queried the grandsire about the origin and purpose of the Khadga as well as about its first acharya ("teacher, preceptor").
Gladdened by these intelligent queries by Nakula, Bhishma related to him the complete Itihasa (Sanskrit term for 'History') of the Khadga or "divine sword" starting from its creation down to the present.
Creation of Asi
The devas approached Brahma, the creator of the universe, in ancient time and protested against the unjust rule and evil doings of the demons (danavas).
Hearing the protest from the deities, Brahma collected sacrificial objects and proceeded to perform a grand sacrifice with the foremost of the rishis and devas at the side of Himalaya.
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