The Parliament enacted the Panchayats Extension to Scheduled Areas (PESA) Act, 1996 to extend provisions of Part IX of the constitution relating to the Panchayats to some areas of the country. Which one of the following is not the objective of this act ?

1) To provide self governance through traditional gram sabha.
2) To extend the provisions relating to the panchayats to the Scheduled areas under Fifth Schedule.
3) To safeguard and to preserve the traditions and customs of tribal communities.
4) To empower the autonomous district councils in four states under Sixth Schedule.