bhayena tīvreṇa vihasya vīraḥ

vrtrah-Vrtrasura, the commander of the demons; asuran-all the demons; tan-them; anugan-his followers; manasvi-the great-minded; pradhavatah-fleeing; preksya-observing; babhasa-spoke; etat-this; palayitam-fleeing; preksya-seeing; balam-army; ca-and; bhagnam-broken; bhayena-out of fear; tivrena-intense; vihasya-smiling; virah-the great hero.