Lord Vishnu's greatest weapon is his name . In Valmiki Ramayana, Lakshmana invoked Rama's name to kill Indrajit when they both couldn't prevail over each other .
- In the battle, Soumitri invoked the unvanquished aindrastra. The best among men affixed this excellent arrow to the excellent bow. He affixed the arrow that could crush the enemy to the bow. The invincible one readied himself, like the Destroyer at the time of the destruction of the worlds. Lakshmana possessed the auspicious qualities. He affixed it to his excellent bow, drew it back and spoke meaningful words that were meant to accomplish his objective. ‘If Rama has dharma in his soul, if he is devoted to the truth, if he is Dasharatha’s son and if he is unmatched in his manliness, then slay Ravana’s son.’ In the battle, the brave Lakshmana drew the bow all the way back up to his ear and released the arrow towards Indrajit. Lakshmana, the slayer of enemy heroes, invoked aindrastra. Indrajit’s handsome head was clad in a helmet and was adorned with earrings. The head was severed from the body and fell down on the ground.
Indrajit possessed aindastra to counter it but it failed to do it when he invoked the divine name of Vishnu
- Shakrajit’s weapons may be impossible to countenance in a battle—they are Brahma, Aindra, Roudra, Vayavya and Varuna weapons
Vishnu is associated with garbha of RTA (cosmic law ) in vedas who upholds dharma .