Flood Hazard and Human Vulnerability in India: A Geographical Analysis

Floods constitute one of the most persistent hydro-meteorological hazards in India, yet their human consequences vary sharply across regions and social groups. This paper examines the spatial geography of flood hazard and the differentiated production of human vulnerability in India. It adopts a descriptive, analytical and comparative design based exclusively on secondary data, drawing on the Central Water Commission (CWC), India Meteorological Department (IMD), National Remote Sensing Centre (NRSC), National Disaster Management Authority (NDMA), NITI Aayog, Ministry of Home Affairs, World Bank, IPCC and peer-reviewed research. The analysis combines the hazard-exposure-vulnerability framework with social-vulnerability and Pressure-and-Release perspectives. It finds that recurrent riverine flooding remains concentrated in the Ganga-Brahmaputra plains; Himalayan regions face rapid-onset flash and compound hazards; coastal and deltaic districts experience interacting river, rainfall and cyclone processes; and urbanisation is generating new pluvial-flood risk through impervious surfaces, drainage constraints and occupation of natural storage areas. Recent research also indicates changing rainfall extremes and projected increases in widespread riverine flooding under warming, although observed rainfall-flood relationships remain spatially uneven. Human vulnerability is shaped by poverty, livelihood dependence, settlement location, housing quality, mobility, access to services and institutional capacity rather than by hazard magnitude alone. The paper concludes that flood policy should move beyond a predominantly protective engineering paradigm towards integrated floodplain governance, risk-sensitive urbanisation, resilient infrastructure, ecosystem-based measures, locally actionable early warning and social protection targeted to vulnerable groups.