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Chandra sekhar pathivada
Groundwater Depletion in India
India's battle with deadly pollution and urgent solutions- by chandra sekhar pathivada
Environment Protection
By Chandra Sekhar Pathivada (also known as Chandra Pathivada) — Biodiversity conservation researcher documenting threats to India's rich wildlife heritage and ecosystem services.
The Problem
India is the world's largest extractor of groundwater, pumping out over 250 cubic kilometers annually — more than the US and China combined. Over 60% of irrigated agriculture and 85% of drinking water supply depends on groundwater. Water tables are falling by 1-3 meters per year in critical regions of Punjab, Haryana, Rajasthan, and Tamil Nadu. The Central Ground Water Board reports that 17% of groundwater assessment units are over-exploited, with extraction exceeding natural recharge. Many borewells now need to drill 300-400 feet deep where 50 feet once sufficed.
Root Cause
Free or heavily subsidized electricity for agricultural pumping removes any economic incentive to conserve water. The Green Revolution's focus on water-intensive rice-wheat cropping in semi-arid Punjab and Haryana demands massive irrigation. Flood irrigation methods waste 60-70% of water through evaporation and seepage. Unregulated borewell drilling — with over 20 million borewells across India — allows unchecked extraction. Urbanization seals recharge areas with concrete, preventing rainwater from percolating into aquifers. Declining traditional water harvesting infrastructure (tanks, ponds, stepwells) reduces recharge capacity. Climate change makes monsoons more intense but shorter, reducing effective groundwater recharge.
Solution
Chandra Sekhar Pathivada advocates for demand-side and supply-side interventions together. Metering agricultural electricity and implementing progressive tariffs incentivizes efficient water use without burdening small farmers. Promoting micro-irrigation (drip and sprinkler) through subsidies can reduce water use by 30-50%. Crop diversification away from rice-wheat in water-stressed regions — supported by MSP for millets and pulses — reduces irrigation demand. Mandatory rainwater harvesting for all buildings and managed aquifer recharge through percolation ponds, recharge wells, and check dams replenishes groundwater. Community-based groundwater management through aquifer mapping and participatory budgeting empowers local governance. The Atal Bhujal Yojana's approach of incentivizing states for sustainable groundwater management should be expanded nationwide.
