Context: Groundwater forms nearly 99% of Earth’s liquid freshwater and is a critical resource for human survival and economic activity. In India, it serves as the backbone of agriculture and drinking water supply, making its sustainable management essential.
Current Status
- Groundwater meets about 62% of irrigation needs, 85% of rural drinking water demand, and 50% of urban demand.
- Annual groundwater extraction stands at 245.64 Billion Cubic Meters (BCM), with a national extraction rate of 60.47%.
- Total annual recharge is 446.90 BCM, showing an increasing trend due to conservation efforts.
- India has a network of 43,228 monitoring stations for groundwater surveillance.
Drivers of Groundwater Depletion
- Policy and Economic Factors: Free electricity and MSP incentives promote over-extraction for water-intensive crops like paddy and sugarcane.
- Demographic and Urban Pressures: Rapid urbanisation reduces recharge through concretisation and over-extraction, leading to groundwater depletion and land subsidence.
- Climate Change: Variability in monsoon patterns affects recharge cycles, while rising temperatures increase water demand.
- Contamination: Industrial effluents and agricultural runoff cause chemical contamination, including heavy metals and nitrates.
- Legal and Institutional Gaps: The Indian Easements Act, 1882 treats groundwater as private property, limiting regulation. This institutional fragmentation leads to uncoordinated governance and weak enforcement.
Government Initiatives
- Model Groundwater Bill, 2017 provides a framework for State-level regulation.
- Jal Shakti Abhiyan (Catch the Rain) promotes conservation and recharge.
- Jal Sanchay Jan Bhagidari has completed over 39 lakh recharge works.
- NAQUIM & NAQUIM 2.0 provide scientific aquifer mapping and planning.
- Atal Bhujal Yojana promotes community-led groundwater management.
- Mission Amrit Sarovar enhances water conservation through pond development.
Key Challenges
- Continued over-extraction threatens long-term sustainability of aquifers.
- Policy distortions and subsidies encourage inefficient water use.
- Weak enforcement and fragmented institutions hinder effective governance.
- Increasing contamination reduces availability of safe drinking water.
- Climate change intensifies uncertainty in water availability and recharge patterns.
Way Forward
- Sustainable Agricultural Practices: Promote micro-irrigation, precision farming, and crop diversification to reduce water use.
- Institutional Reforms: Shift governance from land ownership to aquifer-based management with community participation.
- Technological Integration: Use AI, IoT, and real-time monitoring systems for better groundwater management.
- Policy and Financial Reforms: Rationalise subsidies and incentivise efficient water use through DBT mechanisms.
- Recharge and Conservation: Scale up rainwater harvesting, managed aquifer recharge, and wastewater reuse.
- Climate Resilience: Promote climate-resilient crops and community-based water budgeting.
Conclusion
- Groundwater is central to India’s water security, agriculture, and livelihoods, but it faces mounting pressures. Thus, strengthening groundwater governance will be essential for achieving long-term environmental and economic sustainability.
