Vat Purnima Vrat or Wat Purnima or Vat Savitri Vrat is a fast observed by married Hindu women in for the wellbeing of their husbands and children. Vrat Purnima festival celebrated on the full moon or new moon day (Purnima). Wife ties the cotton threat around the banyan tree for get blessing for his husband long life and observe fasting. Vat Savitri Vrat Fasting is for three days and it begins on the trayodashi day and ends on Amavasi or Purnima. Some sections of Hindu society observe the vrat during Amavasi (new moon) and others during Purnima (full moon) in the Hindu month of Jyeshtha (June – July). The fasting is based on the devotion and determination shown by Savitri to win back her husband Satyavan from the clutches of yama (god of death).