Micro-planning regions are the smallest of all planning regions and have the potential for developing at least one specialization of production cycle of great significance. A region that possesses great potentialities for development and production of any single specialization can be treated as micro-region. e.g. agriculture in Punjab.
Meso-planning regions combine in themselves a few micro-regions and lie at the middle of the hierarchy of planning regions. The micro regions which form the mesoregions must have something common in terms of their natural background, their problems and prospects or their socio-cultural bond. Unlike micro-regions, mesoregions are multipurpose regions, e.g., Damodar Valley Basin.
