Chhath, also called Dala Chhath - is a major festival in Bihar, and is celebrated a week after Deepawali. Chhath is the worship of the Sun God. Wherever people from Bihar have migrated, they have taken with them the tradition of Chhath, and now this festival is known even in a metropolis like Calcutta, or New Delhi or Mumbai. Teej and Chitragupta Puja are other local festivals celebrated with fervour in Bihar.

Among other festivals the Shravani Mela of Sultanganj is of great importance. Shravani Mela is organised every year in July-August. Bihula-Bishari Puja of Anga region also is a great festival of Bihar.

Apart from Chhath, all major festivals of India are celebrated in Bihar, such as Makar Sankranti, Sarasawati Puja, Holi, Id-ud-Fitra, Id-ud-Joha (Bakrid), Muharram, Ram Nawami, Rath yatra, Rakhi, Mahashivaratri, Durga Puja, Divali, Laxmi Puja, Christmas, Mahavir Jayanti, Buddha Purnima, and several other local festivals as well.