This document provides an overview of floods, including their causes, types, effects, and management. It discusses intrinsic and extrinsic factors that can cause flooding when thresholds are exceeded. The main causes of flooding are meteorological, hydrological, and anthropogenic factors like urbanization and deforestation. Common flood types are river floods, flash floods, coastal floods, and urban floods. Estimating floods involves past records, the Rational Method, and flood frequency studies. Design floods are selected based on their return period and probability. Prone areas in India are mapped. Flood management strategies include building on raised platforms, afforestation, forecasting, and controlling water flow with dams.