Mbh 6.95.1c

Beholding that mighty car-warrior thus afflicted and placed in a situation of great peril, many mighty car-warriors of the Pandava army, headed by Abhimanyu, and prepared to lay down dear life itself, rushed to the spot, desirous of rescuing him. The heroic ruler of the low country, the dear friend of Bhima, viz., Nila, looking like a mass of blue clouds, rushed at Drona’s son, filled with wrath. A great bowman, Nila always desired an encounter with Drona’s son. Drawing his large bow, he pierced the son of Drona with many winged arrows, like Sakra in days of old, O king, piercing the invincible Danava Viprachitti, that terror of the celestials, who, moved by anger frightened the three worlds by his energy. Pierced after the same way by Nila with his well-shot arrows winged with feathers, Drona’s son, covered with blood and exceedingly pained, was filled with wrath. Drawing then his large bow, of twang loud as the roar of Indra’s thunder, that foremost of intelligent persons set his heart upon the destruction of Nila. Aiming then a few bright shafts of broad heads and sharpened by the hands of their forger, he slew the four steeds of his adversary and overthrew also his standard. And with the seventh shaft he pierced Nila himself in the chest. Deeply pierced and exceedingly pained, he sat down on the terrace of his car. Beholding king Nila, who looked like a mass of blue clouds, in a swoon, Ghatotkacha, filled with wrath and surrounded by his kinsmen, rushed impetuously towards Drona’s son, that ornament of battle. Similarly many other Rakshasas, incapable of being easily defeated in battle, rushed at Aswatthaman. Beholding then that Rakshasa of terrible mien coming towards him, the valiant son of Bharadwaja impetuously rushed towards him. Filled with wrath he slew many Rakshasas of formidable visage, that is, those wrathful ones amongst them who were in Ghatotkacha’s van.