The 112th Infantry were originally an infantry regiment of the East India Company's Bombay Army and later the British Indian Army. The regiment traces their origins to 1796, when they were raised as the 2nd Battalion, 6th Regiment of Bombay Native Infantry.

The regiments first action was on the Battle of Khadki in the Third Anglo-Maratha War. They also took part in the Battle of Miani and the Battle of Hyderabad during the conquest of Sindh. They next took part in the central Indian campaign after the Indian Rebellion of 1857. During World War I they were attached to the 17th Indian Division in the Mesopotamia Campaign. They were involved in the action at Fat-ha Gorge on the Little Zab and the Battle of Sharqat in October 1918.

After World War I the Indian government reformed the army moving from single battalion regiments to multi battalion regiments.Sumner p.15 In 1922, the 112th Infantry became the 5th Battalion 4th Bombay Grenadiers. However in April 1923 the battalion was ordered to be disbanded, which was completed by the end of September 1923.Sharma, Gautam (1990). Valour and sacrifice: famous regiments of the Indian Army.

Predecessor names 2nd Battalion, 6th Regiment of Bombay Native Infantry – 1796 12th Bombay Native Infantry – 1824 12th Bombay Infantry – 1885 112th Infantry – 1903

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