Mahabharata Bhishma Parva Chapter 91:2

Mahabharata Bhishma Parva (Bhagavat-Gita Parva) Chapter 91:2 Afflicted by their own impetuous clash (against thine), they suddenly fell down, O king, on the earth. And in consequence of those steeds as also of thine occasioned by that clash, loud sounds were heard resembling what occurs at Garuda's swoop. And the rider of those steeds, O king, thus dashing against one another in that battle, began to slay one another fiercely. And during that general engagement which was fierce and terrible, the chargers of both sides (escaping from press of battle) ran wildly away over the field. Weakened by one another's shafts, brave warriors, with their horses killed under them, and themselves worn out with exertion, perished fast sabring one another. Then when those cavalry divisions were thinned and a remnant only survived, the younger brothers of Suvala's son, possessed of great wisdom, rode out, O Bharata (from the Kaurava array) to the van of battle, mounted on excellent chargers that resembled the tempest itself in both fleetness and the violence of their dash and that were well-trained and neither old nor young. Those six brothers endued with great strength, viz., Gaya, Gavaksha, Vrishava, Charmavat, Arjava, and Suka dashed out of the mighty (Kaurava) array, supported by Sakuni and by their respective forces of great valour, themselves clad in mail, skilled in battle, fierce in mien, and possessed of exceeding might. Breaking through that invincible cavalry division (of the Pandavas), O thou of mighty arms, those Gandhara warriors who could with difficulty be vanquished, supported by a large force, desirous of heaven, longing for victory, and filled with delight, penetrated into it. Beholding them filled with joy, the valiant Iravat, addressing his own warriors decked with diverse ornaments and weapons, said unto them, 'Adopt such contrivances in consequence of which these Dhritarashtra warriors with their weapons and animals may all be destroyed.' Saying 'Yes', all those warriors of Iravat began to slay those mighty and invincible Dhartarashtra soldiers. Beholding that their own warriors were thus overthrown by Iravat's division, those sons of Suvala being unable to bear it coolly, all rushed at Iravat and surrounded him on all sides. And commanding (all their followers) to attack those of Iravat with lances, those heroes swept over the field, creating a great confusion. And Iravat, pierced with lances by those high-souled warriors, and bathed in blood that trickled down (his wounds), looked like an elephant pierced with the hook. Wounded deeply on the chest, back, and flanks, singly encountering the many, he did not yet, O king, swerve from his (natural) firmness. Indeed, Iravat, excited with rage, deprived all those adversaries of their senses, piercing them, in that battle, with sharp shafts. And that chastiser of foes, tearing those lances from off his body, struck with them the sons of Suvala in battle. Then unsheathing his polished sword and taking a shield, he rushed on foot, desirous of slaying Suvala's sons in that combat. The sons of Suvala, however, recovering their senses, once more rushed at Iravat, excited with wrath.