Raksha Bandhan is a Hindu festival celebrating the bond between brothers and sisters, typically observed on the full moon day of the month of Shravana (usually in August). The central ritual involves a sister tying a sacred thread called a rakhi around her brother's wrist, symbolizing her love and prayers for his wellbeing, while the brother offers a gift and pledges to protect and support her. Though rooted in Hindu tradition, it is widely celebrated across South Asia and has grown to embrace broader expressions of affection, protection, and kinship beyond strictly sibling relationships.