Battalions are presented here in the order in which they were formed. The headings are their 1860 numbering, which are not in the same order. This depot scheme originated in 1834 as a depot battalion in England serving the East India Company armies. The British Army formed three provisional depot battalions in 1854 and twenty-one more in 1856. The Indian Mutiny saw the EIC battalion broken up to form two more, and these were soon absorbed into the British Army. Several disbanded in the 1860s, all but one of the remainder in 1871, and the last shortly afterwards. This depot system was replaced in 1873 by the Cardwell territorialisation scheme.