Raksha-Bandhan is a major festival of Hindus specially dedicated to brothers and sisters. Raksha-Bandhan is a major festival of Hindus specially dedicated to brothers and sisters. It falls on Shravan Poornima of Hindu calendar. The day symbolizes the love of brothers and sisters. The festival is of Hindus, but it is observed by people of other religions too. The main tradition of Raksha-Bandhan or krishna rakhi is tying a Rakhi (sacred thread) on brother's wrist with prayer of his well-being and brother returning a promise of life long protection of his sister. The actual beginning of this festival is not actually known as there is mention of Rakhi in almost every Indian epic.