Dhristadyumna was born out of that sacrificial fire, with a boon that he would kill Dronacharya in the future.
To avenge his defeat, Drupad performed a sacrifice to beget a son. Many years back, Dronacharya along with the Pandavas had defeated King Drupad in a battle and took away half his kingdom. Duryodhana was subtly reminding his teacher of a mistake he had committed in the past.
Duryodhana asked Dronacharya to look at the skillfully arranged military phalanx of the Pandava army led by their commander-in-chief Dhristadyumna, King Dhrupad’s son.
