Post-Mutiny Changes
While these exact specifications were not followed, similar ones were implemented.
These additional European reinforcements included the 18th Hussars. In addition, most of the sepoys that had been in the British army before the Mutiny-even the ones that had stuck with the British-were removed. For example, only 8,000 of the the Bengal Army's original 120,000 sepoys were retained. To counter this, new Indian soldiers were raised into the British Army. The objectives of the army changed, as European soldiers were used to watch the Indian soldiers to guard against future rebellion. Many units were moved into the frontiers of the north-west and north-east to protect against tribal raiders and suspected Russian intrigue into India via Afghanistan (this worry had very little grounds, and never came close to fruition).
Sources:
1. Heathcote, T. A. The Military in British India: The Development of British Forces in South Asia, 1600-1947. Manchester: Manchester UP, 1995. Print.
2. Arnold, David. Colonizing the Body: State Medicine and Epidemic Disease in Nineteenth-century India. Berkeley: U of California, 1993. Print.