Rakshabandhan is mainly a festival of Hindus. According to the story in Hinduism, Yamuna was the sister of Yamraj, the god of death. Yamuna tied a rakhi to his brother Yamraj and wished him a long life. Yamraj was pleased and gave Yamuna a boon of immortality. Therefore, in Hinduism, a person who ties a rakhi to his sister on the day of Rakshabandhan, he gets the blessings of health.