Danveer Karna died in Mahabharata war. His soul transcended to heaven, where he was offered gold and jewels as food. Karna needed real food to eat. He asked Yama, the reason for serving gold as food. Yama told Karna that he had donated gold all his life, but had never donated food to his ancestors in Shraddh. Karna said that since he was unaware of his ancestors, he never donated anything in their memory. To make amends, Karna was permitted to return to earth for a 15–day period, so that he could perform Shraddh and donate food and water in their memory. This period is now known as Pitru Paksha Shraadh.