123rd Outram's Rifles

Known as the 23rd Regiment of Bombay Native Infantry in the Bombay Army
Known as 123rd Outram's Rifles in the Indian Army

Chronology

1820 formed as 1st Battalion, 12th Regiment of Bombay Native Infantry
1824 became 23rd Regiment of Bombay Native Infantry
1841 became 23rd Regiment of Bombay Infantry (Light)
1889 became 23rd Regiment (2nd Battalion Rifle Regiment) of Bombay Infantry
1901 became 23rd Bombay Rifles
1903 became 123rd Outram's Rifles
1922 amalgamated with five other regiments, including the 125th Napier's Rifles, to become the 4th Battalion (Outram's) 6th Rajputana Rifles
1945 became 4th (Outram's) Battalion Rajputana Rifles
1947 allocated to India on Partition