The document discusses the concept, structure, process, impact and future of Special Economic Zones (SEZs) in India. It traces the origin and evolution of SEZs from Export Processing Zones (EPZs) and provides details on the approval process, incentives offered, and functional SEZs in the country. It also outlines the positive impacts of SEZs in boosting the economy through increased investment, employment and exports, while acknowledging some challenges around issues like land acquisition and environmental protection.