Soon after Diwali comes Bhai Dooj, a festival that celebrates the beautiful bond between siblings. On this day, sisters pray for their brothers well being and long life, while brothers vow to protect their sisters.The auspicious day, also known as Bhai Phota or Bhau Bheej, is celebrated on the second day after the new moon or Shukla Paksha in the Hindu lunar month of Kartik.