The most backward groups among the tribal communities, many of them at a pre-agricultural stage of the economy, were identified, and special programmes were taken up for their development. The administrative structure in tribal areas was reviewed and restructured, so as to provide effective services to the tribal people. The areas under and restructured, so as to provide effective services to the tribal people. the areas under the Fifth Schedule have been rationalized, so as to provide more effective protection to the tribals and for better implementation of plans.