When Arjuna won Draupadi at the swaymwara, Duryodhana who had thought
that he had killed the Pandavas in the lake palace, came to know that
they were alive. He feared that
Yudhisthira would come and claim the throne of Hastinapur. Karna who
was the best friend of Duryodhana, told him about a plan to get rid of
the Pandavas. The Pandavas were staying in the palace of Drupada, king
of fort Panchala, So Karna suggested Duryodhana to take the army of
Hastinapur and attack Panchala, and capture the Pandavas. Duryodhana was
delighted and went to the elders of Hastinapur to seek their approval.
Bhishma, Drona and Vidura condemned the plan and warned Duryodhana
against his evil designs. Although Dhritarastra in his heart wanted
Duryodhana to be king, he had to go along with the decision.