Bihar is the cradle of ancient Indian civilisations and empires. Hindu, Buddhist and Muslim influences intermingled to produce a soldiery which was traditionally arms bearing, disciplined and deeply religious. The BIHAR Regiment claims its origins from the sepoy battalions raised in 1758 by Lord Clive at Patna. These were formed by men from the Bhojpur region of Bihar. Their success in combat had impressed the local ruler Mir Kasim, to begin raising units trained in western combat techniques. The Bihari battalions raised by Mir Kasim had not only done well, but also beaten the British in some engagements. The Bihari, or 'Poorbia'/ 'Purviah' soldier thereafter continued to be the backbone of the Bengal Infantry of the British. The Bihari -particularly the Brahman -was not only an excellent soldier, he was also quick to learn and apply the tactical drills with initiative. He was disciplined when led by good officers, but capable of hostility when his beliefs and customs were disregarded. The 1857 revolt against the introduction of greased cartridges, was led by the Bihari troops, who preferred being blown by the guns to losing their faith.Biharis thereafter were not encouraged to enter military service until after the Great War, when they were accepted in the Hyderabad Regiment, which later became the KUMAON regiment. 1st BIHAR Battalion owes its origins to the Kumaonis. The 2nd was raised as part of the BIHAR Regiment.
The regimental insignia is the Ashoka Lion. The Regimental Centre is at Danapur, Bihar. The Regimental motto is Karam Hi Dharam.Battle Honours
Pre-Independence Haka and Gangaw.