He was born as the eldest son of the Princess of Kuntibhoj. She was unmarried and had a bright future ahead of her. She did not want to sabotage her life and future for the unwanted child. She wrapped him in a blanket and decided to float him on the River, hoping the Mother Goddess would safely deliver him to someone. His father, the Sun God himself, was sympathetic to her plight and, for the safety of his son, provided him with a set of golden Kavach and Kundal (A set of earrings and a locket/beads/armour) to protect him. These were powerful enough to save him from any weapon.
The currents took the baby far away to the land of Hastinapur. The royal charioteer Adhirath and his wife Radha were bathing there and praying to the Sun God for a child. A basket floated past them with a baby in it. They picked the baby up and decided to call him their son. Growing up, he wanted to learn archery and train as a Kshatriya, much to the objection of his parents. He went to Parasurama, the teacher of the great Brahmins and Kshatriyas, including Bheeshma and Drona... Parasurama, to whom the secrets of his birth were unknown, agreed. After completion of his training, his Guru called him to his hut and said, " Putra Vasusena, you have proved to be the greatest of my students. I want to give you my Bhargavastra and my own bow Vijaya."
Happy, the Suta Putra Vasusena, went to the festivities arranged by the Kuru Kingdom for the Royals to show his skills in front of Drona, who once rejected him. There, he proved to be the toughest competitor to the Pandava Prince Arjun. Happy with his feats, the Kaurav Prince Suyodhan extended his hand of friendship to the Suta Putra, much to his gratitude. They went together to the Swayambhar of Drupad Princess Panchali, where he got humiliated for his caste. He was promptly made King of Anga after this incident by Suyodhana. He is said to have founded the city of Karnal and was hence named Karna by his subjects.
He married Vrushali and Supriya as per his parents' wishes. He was a constant friend and supporter of the Kauravas. Even when he knew they were choosing the path of Adharma, he felt it necessary to stay beside Suyodhan and show his gratitude for supporting him in times of need. Krishna and Kunti told him the truth of his birth, that he was indeed the son of Kunti and elder brother to the Pandavas. Knowing this, he told Kunti, " Raajmata, I am a Suta Putra to the world, and you selfishly rejected me at birth. My parents brought me up and loved me, and I cannot abandon them for power and for you. I promise you not to harm any of my brothers except Arjun, and you have to promise me that you will not tell anybody my real identity. I want to die, Radheya, even if I have to."
"But you deserve to be king, my dear."
Karna's Death
" No, if you tell the Pandavas they will surrender to me, and I have to repay my gratitude to Duryodhan, which will be unfair to Draupadi."
Karna was deceived by Indra in disguise to give his Kavach and Kundal away as alms to protect his son Arjun. Knowing that it is Indra in disguise, he gave away his possessions willingly because he wanted justice to be served.
His sense of gratitude lets him do wrong on the battlefield by deceiving and killing his greatest rival, Arjun's son Abhimanyu, with the Kauravas. He got his deserved pain when all his eight sons died in the battle. He fought with Arjun undefeated until his chariot wheel got stuck in the mud, as per a curse he received long ago. Unarmed Karna was killed by Arjun and survived by his only son, Vrishakethu, who was taken into the care of Arjun after he came to know of his true identity. His chief wife, Vrushali, committed Sati on his pyre.
He died a hero, knowing his mistakes and regretting a few actions. He honoured women, unlike the Kauravas, and was a Kshatriya in the truest meaning of the word. He was indeed the greatest warrior of the epic and a true hero.
