Raksha Bandhan also known as Rakhi is a Hindu celebration. Raksha Bandhan is the Hindu festival that celebrates brotherhood and love. It is celebrated on the full moon in the month of Sravana in the lunar calendar.
The festival is marked by the tying of a rakhi, or holy thread by the sister on the wrist of her brother. The brother in return offers a gift to his sister and vows to look after her as she presents sweets to her brother. The brother and sister traditionally feed one another sweets.
It is not necessary that the rakhi be given only to a blood brother; any male can be "adopted" as a brother by tying a rakhi on the person, that is "blood brothers and sisters", whether they are cousins or a good friend. Indian history is replete with women asking for protection, through rakhi, from men who were neither their brothers, nor Hindus themselves.
The word Raksha means protection, whilst Bandhan is the verb to tie. Traditionally, during the festival sisters tie a rakhi, a bracelet made of interwoven red and gold threads, around their brothers' wrists to celebrate their relationship.