The correct answer is option 4, the Sixth Schedule. The Sixth Schedule of the Indian Constitution contains special provisions for the administration of tribal areas in the northeastern states of Assam, Meghalaya, Tripura, and Mizoram. This schedule was incorporated to safeguard the interests of the tribal communities in these states and protect their unique customs, traditions, and culture. It provides for the formation of autonomous district councils with specific powers to govern these tribal regions. The autonomous district councils have legislative, administrative, and financial powers to make laws on various subjects and manage local affairs in accordance with their traditional customs. Alert - The correct answer should be option 4, the Fifth Schedule, not the Sixth Schedule. The Fifth Schedule applies to certain areas in Assam, Meghalaya, Tripura, and Mizoram and provides for the protection of the rights of indigenous tribal people.