| Functions/Mahotsava |
| Vaishali Mahotsava | Vaishali | under observation | | Koshi Mahotasava | Saharsa | under observation | | World Tourism Day | Patna | under observation | | Rajgir Mahotsava | Rajgir | under observation | | Baudha Mahotsava | Bodhgaya | under observation | | Sonepur Fair | Sonepur | under observation | | Tourism & Trade Mart | Patna | under observation |
| Festivals |
| Guru Govind Singh Birthday | January 15 | | Basant Panchmi | February 11 | | Republic Day | January 26 | | Muharram | January 20 | | Mahashivratri | March 05 | | Holi | March 21 and 22 | | Chehllum | February 28 | | Ramnavmi | April 14 | | Hazrat Mohammad Saheb Birthday | March 21 | | Good Friday | March 21 | | Bheem Rao Ambedkar Birthday | April 14 | | Veer Kuwar Singh Jayanti | April 23 | | World Labours Day | May 01 | | Independence Day | August 15 | | Shabey Barat | August 18 | | Shri Krishna Janamastmi | August 23 | | Mahatma Gandhi Jayanti | October 02 | | Id-Ul-Fitar | October 02 | | Durga Pooja | October 06,07,08,09 | | Deepawali | October 28 | | Chhath Pooja | November 04 and 05 | | Id Ul-Joha (Bakreed) | December 09 | | Christmas Day | December 25 |
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