Historically, the hill tribes of Northeast India were neither a part of India (since the Republic of India did not exist back then) nor of Assam prior to the British colonization of this region. After the recommendation of Simon Commission, the hill area (Karbi Anglong district) was given a different status under Section 92 of the Government of India Act 1935: Mikir Hills was placed under the "Partially Excluded Areas" (). The Govt. of Assam, which means had no jurisdiction over the excluded areas which were administered under the special power of the Governor.