Nahai Khai marks the beginning of the four-day Chhath festival. The most important event on this day is preparing food on freshly prepared ovens after taking a dip in
Ganga. Nahai Khai 2015 date is November 15. The preparation is known as Lauki Bhat. Chhath festival, also known as Suryashashti, symbolically involves spiritual and physical purification.
The main food cooked on the Nahai Khai day is rice, chana dal, and green gourd (lauki). Lauki is an important preparation on the day and therefore the cooking is also referred as Lauki Bhat.
The ritual of nahai-khai is followed by kharna – a day of fasting. On the next two days, ‘arghya’ (offerings) is done to the Sun God.