The document provides information on the major extension systems in India operated by ICAR, including the All India Coordinated Project on National Demonstration (ND), Operational Research Project (ORP), Lab to Land Programme (LLP), Krishi Vigyan Kendra (KVK), National Agricultural Technology Project (NATP), National Initiative on Climate Resilient Agriculture (NICRA), National Agricultural Higher Education Project (NAHEP), Extension Education Institutes (EEIs), and National Institute of Agricultural Extension Management (MANAGE). It describes the objectives, activities, and components of these different extension programs and organizations.