The Bihar Regiment was formed in 1941 by regularising the 11th ( Territorial ) Battalion, 19th Hyderabad Regiment, and raising new battalions.
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The Bihar Regiment was formed in 1941 during World War II by regularising the 11th ( Territorial ) Battalion, 19th Hyderabad Regiment as the 1st Battalion Bihar Regiment.
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He was commissioned as a lieutenant to the 7th Battalion of the Bihar Regiment During the'Ghatak course'( at the Commando Wing ( Infantry School ), Belgaum ), the most difficult course of the Army, Unnikrishnan topped the course, earning an " Instructor Grading " and commendation.