During the 18-day Kurukshetra war, Uttar and his brothers fought in support of the Pandavas. Uttar was killed on the very first day of the war by Shalya. Uttar’s brother Shweta, who witnessed the ghastly death of his brother, immediately went into a frenzy and started attacking Shalya repeatedly to avenge his brother’s death. Bhishma came to Shalya’s rescue and ultimately killed Shweta. Thus the two brothers died on the same day, within minutes of each other. In the Chatahurdi compilation, a third brother, Shankhya, was killed by Drona on the seventh day of the war.