British India

2^nd Bombay Pioneers

	Presidency of Bombay		Presidency of Bombay		Presidency of Bombay
1777:					The Marine Battalion of Bombay Sepoys │
1788:	4th Regiment of Bombay Sepoys │				│ │
1796:	1st Battalion, 4th Regiment of Bombay Native Infantry │				│ │ │ │
1818:	│ │ │ │				1st Marine Battalion, 11th Regiment of Bombay Native Infantry │
1824:	7th Regiment of Bombay Native Infantry │				The Marine Battalion of Bombay Native Infantry │
1838:	│ │ │	3rd Regiment of Infantry Sjah Shujah’s Force │			│ │ │
1842:	│ │	Regiment of Kelat-i-Ghilzie │			│ │
1846:	│ │ │	│ │ │	28th Regiment of Bombay Native Infantry │		│ │ │
	│	Rebuilding the Bengal Army	│		│
	│	│	│		│
1861:	│ │ │ │	13th Regiment of Bengal Native Infantry │ │	│ │ │ │		21st Regiment of Bombay Native Infantry (The Marine Battalion) │
1861:	│ │ │	12th Regiment of Bengal Native Infantry │	│ │ │		│ │ │
1864:	│ │ │ │	12th (Kelat-i-Ghilzai) Regiment of Bengal Native Infantry │	│ │ │ │		│ │ │ │
1885:	7th Regiment of Bombay Infantry │ │	12th (Kelat-i-Ghilzai) Regiment of Bengal Infantry │	28th Regiment of Bombay Infantry │ │		21st Regiment of Bombay Infantry (The Marine Battalion) │
1888:	│ │ │ │	│ │ │ │	28th (Pioneer) Regiment of Bombay Infantry │		│ │ │ │
1900:	7th Regiment of Bombay Infantry (Pioneers) │	│ │ │ │	│ │ │ │		│ │ │ │
	│	│	│	Presidency of Bengal	│
	│	│	│		│
1901:	7th Bombay Infantry (Pioneers) │	12th (Kelat-i-Ghilzai) Bengal Infantry │	28th (Pioneer) Bombay Infantry │	48th Bengal Pioneers │ │	21st Bombay Infantry (The Marine Battalion) │
	Renumbering into the Indian Army
	│	│	│	│	│
1903:	107th Pioneers	12th Pioneers (The Kelat-i-Ghilzai Regiment)	128th Pioneers	48th Pioneers	121st Pioneers
	│	│	│	│	│
1916:	│ │	│ │	│ │	2nd Battalion raised │	│ │
1917:	2nd Battalion raised │	2nd Battalion raised │	│ │	2nd Battalion disbanded │	│ │
1918:	│ │	│ │	2nd Battalion raised │	2nd Battalion raised │	│ │
1920:	│ │	│ │	│ │	2nd Battalion disbanded │	│ │
1921:	2nd Battalion disbanded │	2nd Battalion disbanded │	│ │	│ │	│ │
1922:	1st Battalion,	2nd (Kelat-i-Ghilzie) Battalion,	3rd Battalion,	4th Battalion,	10th (Training) (Marine) Battalion,
	2nd Bombay Pioneers
	│
1929:	The Corps of Bombay Pioneers │
1933:	disbanded

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The Regular Infantry Regiments of the British Indian, Indian and Pakistan Army
The Regiments of the British Indian, Indian and Pakistan Army
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