The significance of Bhai Dooj in Indian culture is immense. It strengthens the bond between brothers and sisters and promotes sibling love and respect. The festival is celebrated on the second day of the Diwali festival. The celebration involves the sisters putting a 'tilak' on their brother's forehead and performing aarti, praying for their wellbeing and long life. The brothers, in return, present their sisters with gifts and vow to protect them.