Bihar Day
Also called	Bihar Diwas, Bihar Sthapana Diwas
Observed by	Bihar, India
Type	State
Significance	Foundation day of Indian state Bihar
Begins	22 March 1912
Date	22 March
Next time	22 March 2024 (2024-03)
Frequency	Annual

Bihar Day (Bihar Diwas) is observed every year on March 22,^[1] marking the formation of the state of Bihar. On 22 March 1912, the Bihar and Orissa divisions of the Bengal Province were separated to form the Province of Bihar and Orissa in British India.^[2][3] The day is a public holiday in Bihar.^[4]

Bihar Day was started and celebrated on large scale by Bihar Government in the tenure of Nitish Kumar.^{[citation needed]} Apart from India, it is celebrated in countries including the United States, Germany,^[5] Britain (Scotland),^[6] Australia, Canada, Bahrain, Qatar, United Arab Emirates, Trinidad and Tobago and Mauritius.^[7]

Observance

Every year the Government of Bihar issues a notification declaring the 22 March to be a public holiday to be celebrated as Bihar Day. This holiday applies to all the offices and companies under the jurisdiction of the State and central Government as well as Schools celebrate this day by organising various programmes participated by students.^{[citation needed]}