Sonepur fair is also steeped in mythology and folklore like other ancient fairs. Sonepur Fair is the Asia's largest cattle fair which is held in Sonepur in Bihar. This month-long fair is held on Kartik Purnima, the first full moon after the festival of Diwali in the month of November. In this fair, various domestic and farm animals like elephants, camels, sheeps and birds are bought from the different parts of the country and sold. Various handicrafts and handlooms are also sold and magic shows, folk dances and contests of skill are also held. The fair attracts a large number of foreigners and Indian tourists every year. According to the legend, the Sonepur

was the site of a battle between the Gaj (elephant), the lord of the forest and Garh (crocodile), the lord of the waterways.

Chhath or Surya Puja is the main festival of Bihar. This festival is held after six days of Diwali. Chhath is a festival of prayer and propitiation observed with solemnity. It is an expression of thanks giving and seeking the blessings from the forces of nature, mainly the Sun and river. The belief is that a devotee’s desire is always fulfilled during Chhath. In this festival, the people worship the Sun God. On the first day, the house is thoroughly cleaned, family members go in for a holy dip and eat strict vegetarian food and sleep on the floor. All earthen vessels are reserved for this day only. The person observing the Chaath also known as Parvati, observes dawn to dusk fast which concludes with sweets. This is followed by another fast for 36 

hours till the dawn of the final day when puja starts at the river bank much before sunrise. These parvatis remain in water from late midnight until the first ray of dawn. The rivers are flooded with offerings to the sun which is followed by breakfast and distribution among the gatherings. Fresh paddy, sweets and fruits are also offered by the devotees to the Sun God for a good harvest at the sun temple in Baragaon near Nalanda.