The Panchayat Extension to Scheduled Areas (PESA) Act of 1996 primarily aims to enhance the self-governance of tribal communities by granting them more control over their local resources, governance, and decision-making processes. While it empowers these communities, the act does not seek to create autonomous regions but rather integrates them into the existing panchayat system, ensuring that their unique socio-cultural practices are respected within a framework of local governance. Therefore, the option stating "to create autonomous regions in tribal areas" is incorrect as it misinterprets the act's focus on empowered local self-governance rather than creating separate administrative units.