This book initiates basic concepts of disaster, hazard, vulnerability, resilience, risks and impacts including social, economic, political, environmental, health, psychosocial, etc. impact of development projects such as dams, embankments, changes in land-use etc. It covers disaster risk management in India components of disaster relief: water, food, sanitation, shelter, health, waste management, and role of GIS and information technology components in preparedness, risk assessment, response and recovery phases of disaster.