Consider the following statements regarding the provisions under the Sixth Schedule of the Constitution:

1. The Sixth Schedule applies to the tribal areas in Assam, Meghalaya, Tripura, and Mizoram, and provides for the establishment of autonomous district councils.

2. The jurisdiction of autonomous district councils under the Sixth Schedule is similar to that of the concerned High Court.

3. The Sixth Schedule makes an exception to allow the President to modify the boundaries or names of the autonomous districts and regions.

How many of the statements given above is/are correct?