Karna Parva— The Book of Karna
The Karna Parva, the eighth book of the Mahabharata, covers the two days when Karna led the Kaurava army — and his long-fated duel with Arjuna.
The radiant general
After Drona’s death, Karna takes command, blazing across the field as the equal of any warrior alive. At his request the reluctant King Shalya, a master horseman, becomes his charioteer — but Shalya, secretly sympathetic to the Pandavas, wounds Karna’s spirit with constant belittling words.
The vow fulfilled
In the fury of battle Bhima at last corners Dushasana, who had dragged Draupadi by the hair, and fulfils his terrible oath, tearing open his enemy’s breast — a horror that repays the outrage of the dice hall and shakes the Kaurava host.
The fall of Karna
Karna and Arjuna meet in the duel toward which their whole lives have moved. But the curses laid on Karna come due: he forgets the incantation for his mightiest weapon, taught by Parashurama, and the wheel of his chariot sinks fast in the earth, as a Brahmin once foretold. As Karna steps down to free it and appeals to the rules of war, Krishna reminds Arjuna of every injustice Karna had abetted — the burning house, the dice game, the killing of Abhimanyu — and Arjuna looses the crescent Anjalika arrow that strikes off Karna’s head.
Only afterward will the Pandavas learn that the noble enemy they had hated was their own eldest brother, Kunti’s firstborn son.
The Karna Parva is the epic’s great tragedy of loyalty and fate: a generous, gifted soul, wronged from birth and faithful to a friend’s unjust cause, undone at last by the accumulated weight of his choices.