The Early Years until 1796
The Reorganisation of 1796
The Two Battalion Regiments 1796 - 1824
From the Reorganisation of 1824 to the Mutiny
From the The Mutiny to the Indian Army
The Regiments in 1885
The Regiments in 1902
From 1903 to the Large Regiments of 1922
These are the regiments after the 1903 reorganisation in one Indian Army. Only the 106th Hazara Pioneers were an addition in 1906.
The 1922 Reorganisation into Large Regiments
The Regiments in 1922
The Second World War and Independence
The Indian Regiments since 1950
The Pakistani Regiments since 1956