Sutasoma was son of Bhima and Draupadi, third of the Upapandavas. He played a major role in the battle by nearly killing Shakuni. He played a major role along with Yudhishthira and other Upapandavas in holding off Arjuna and Bhima on the 15th day.
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Prativindhya or Shrutavindhya was born to Yudhishthira and Draupadi and was the eldest of the Upapandavas.
Shrutavarma was born to Sahadeva and Draupadi and the fourth of the Upapandavas. In the Chatahurdi analysis of the Mahabharata, he was defeated by Shakuni during the battle; he killed Shala, the younger brother of Bhurishravas.
Shrutakirti was the son born to Arjuna and Draupadi, the youngest of the Upapandavas, he was born definitely after the Arjuna’s return from adventures and would be very young at time of battle. His horses were supposed to bear the colour of kingfishers. He fought against Dushasana and Ashwathama in the battle.
On the last night of the war after Duryodhana’s death and Kaurava defeat, Ashwathama gathered the only other surviving Kaurava warriors – Kritavarma and Kripacharya attacked the Pandava camp on the 18th night of the Kurukshetra war. He killed Dhrishtadyumna, Shikhandi, and many other prominent warriors of Pandava army while they were sleeping. Ashwatthama killed all the five Upapandavas during their sleep. In some versions of the story, he believes them to be the five Pandava brothers; in others, he purposefully attacks the Pandavas’ heirs in order to hurt the Pandavas emotionally.