Raksha Bandhan has a deep-rooted historical significance. There are many legends linked with the past of the Hindu religion. According to Hindu mythology, it is believed that on every Shravana Purnima day the deity Yamuna used to tie a sacred thread on Yama’s (God of death) wrist. Yama was so impressed and touched by the serenity of this custom that he declared, whoever got a rakhi tied from his sister would become immortal. From that day the tradition has been performed by the people.