By Swami Harshananda
Uttarakumara was the son of the king Virāṭa of Matsyadeśa. When the Kauravas invaded Virāṭa’s capital and were taking away the royal cows, Uttara boasted that he would drive them away. Taking Bṛhannalā as his charioteer, he went to the battle-field. However when he saw the huge army of the enemies he was unnerved and wanted to run away. Arjuna succeeded in encouraging him as his charioteer. He drove away all the Kauravas. He participated in the Kurukṣetra war for the Pāṇḍavas and was killed by Śalya, the king of Madradeśa.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore