Northeast India when they became relatively isolated from traditional trading partners such as Bhutan and Myanmar. Many of the peoples in present-day Mizoram, Meghalaya and Nagaland converted to Christianity under the influence of British (Welsh) missionaries. In the early 19th century, both the Ahom and the Manipur kingdoms fell to a Burmese invasion. The ensuing First Anglo-Burmese War resulted in the entire region coming under British control. In the colonial period (1826–1947), North East India was made a part of Bengal Province from 1839 to 1873, when Assam became its own province. After Indian Independence from British Rule in 1947, the Northeastern
Caste system in India self-rule for India, such as the previously ruling families Kallars and the Maravars in south India and non-loyal castes in north India such as Ahirs, Gurjars and Jats, were called "predatory and barbarian" and added to the criminal castes list. Some caste groups were targeted using the Criminal Tribes Act even when there were no reports of any violence or criminal activity, but where their forefathers were known to have rebelled against Mughal or British authorities, or these castes were demanding labour rights and disrupting colonial tax collecting authorities. The colonial government prepared a list of criminal castes, and all