The document provides an overview of energy planning in India and key concepts related to energy planning. It discusses India's current energy scenario, including reliance on imports to meet energy needs. It also outlines different types of energy sources in India, including non-conventional sources like solar, wind, biomass, tidal, geothermal, and hydro energy. The document then discusses concepts related to energy planning such as integrated resource planning, demand side management, and least cost planning. It notes that energy planning aims to guide future energy policies and development. Center-state relations regarding legislative, administrative and financial aspects are also summarized.