[2] 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 chariot, a skillful swordsman could still defend himself against the mace and spear wielders.
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.
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.
It shall effect the destruction of the enemies of the gods and restore the Dharma.Upon this, the creature assumed the form of a blazing sharp-edged sword, glowing like flames.
[1] Brahma gave that sword to Shiva, and requested him to put down the sinners and evil-doers, and restore the Dharma (righteousness).
Shiva, assuming his extreme form, took up the sword and started the war against the Danavas, the enemies of the Devas.
In time, Manu installed his own son, Kshupa, as the sovereignty of all creatures and gave him the sword for their protection.
Satanika, who studied the Vedas under Yajnyawalkya, and military science from Kripacharya, became dissatisfied with sensual enjoyments.
Asi, the sword, again went back to Kripacharya for safe keeping until the return of the rightful owner, Dronacharya's son, Ashwatthama.