The Sixth Schedule of the Constitution aims to protect the autonomy of:

Tribal areas in Northeast India
Religious minorities
Linguistic minorities
States with special status

The correct answer is: a) Tribal areas in Northeast India.

The Sixth Schedule of the Constitution of India provides for special provisions with respect to the administration of tribal areas in the states of Assam, Meghalaya, Tripura, and Mizoram. It aims to protect the autonomy of these areas and to promote the welfare of the tribal people living there.

The Sixth Schedule provides for a number of measures to achieve these objectives, including the establishment of autonomous district councils, the appointment of tribal advisory councils, and the reservation of seats for tribal people in the legislative assemblies and councils of these states.

The Sixth Schedule has been in operation since 1950 and has been successful in protecting the autonomy of tribal areas and promoting the welfare of the tribal people living there. However, there have been some criticisms of the Sixth Schedule, including the argument that it has led to the isolation of tribal areas from the mainstream of Indian society.

The other options are incorrect because:

  • Option b) is incorrect because the Sixth Schedule does not specifically mention religious minorities. However, the Constitution of India does provide for special provisions for the protection of religious minorities, such as the right to freedom of religion and the right to establish and maintain educational institutions.
  • Option c) is incorrect because the Sixth Schedule does not specifically mention linguistic minorities. However, the Constitution of India does provide for special provisions for the protection of linguistic minorities, such as the right to use their language in government offices and the right to establish and maintain educational institutions in their language.
  • Option d) is incorrect because the Sixth Schedule does not specifically mention states with special status. However, the Constitution of India does provide for special provisions for certain states, such as Jammu and Kashmir and Nagaland.