Water Security: Groundwater Depletion & Management

UPSC Mains PYQs

Water Crisis & Management (2020): "India has only 4% of the world's freshwater resources but has to support over 18% of the global population." Analyze the primary causes of groundwater depletion in India, focusing on agricultural irrigation policies. Assess the role of the Atal Bhujal Yojana in institutionalizing community-led water budgeting. (15 Marks, 250 Words)

📊 High-Yield Data & Statistical Fact Sheet

Water Resource Metrics:
- Resource Gap: India holds 18% of the global population but only 4% of global freshwater.
- Per Capita Decline: Fell from 5,177 m³/year (1951) to 1,486 m³/year (2021), heading towards the 1,000 m³ water-scarcity threshold by 2030.
- Groundwater Dependency: Supplies 85% of rural domestic water and 64% of agricultural irrigation.
- Extraction Quantity: India extracts over 240 Billion Cubic Meters (BCM) of groundwater annually (world's largest extractor).
- Agricultural Load: Irrigation consumes 87% of total groundwater extraction.
- Exploitation Zonation: Over 14% of groundwater assessment blocks are classified as over-exploited by the CGWB.

Loading chart...

1. DRIVERS OF GROUNDWATER DEPLETION

Agricultural Subsidies: Free or highly subsidized electricity for agricultural pumping leads to unregulated, round-the-clock tubewell extractions.
Water-Guzzling Crops: Government procurement (MSP) patterns favor water-intensive crops like paddy and sugarcane in dry, water-stressed regions (e.g., Punjab, Maharashtra).
Virtual Water Trade: The hidden export of water embedded in agricultural exports. Exporting 1 kg of rice exports ~3,000 to 5,000 Litres of water out of India's domestic reserves.
Hydro-geological Limits: Peninsular India's crystalline hard-rock aquifers have low storage capacity and recharge slowly, causing rapid water-table drops.

Atal Bhujal Yojana (ABY): A ₹6,000 Crore community-led groundwater management scheme. Mandates the creation of Gram Panchayat Water Security Plans based on local water budgeting.
Jal Shakti Abhiyan (Catch the Rain): Promotes rapid rainwater harvesting, desilting of traditional tanks, and building Amrit Sarovars (75 water bodies per district).
NAQUIM (National Aquifer Mapping Program): Uses 3D geophysical tools to map and characterize subsurface aquifer formations, enabling micro-level water planning.
Jal Jeevan Mission (JJM): Focuses on providing piped water connections to all rural homes. Integrates greywater treatment and reuse for recharging local groundwater sources.

Crop Diversification: Shifting farmers from paddy/sugarcane to climate-resilient millets (Shree Anna), pulses, and oilseeds in drylands.
Micro-Irrigation Scaling: Expanding sprinkler and drip systems (under PMKSY "Per Drop More Crop") to double water-use efficiency.
Springshed Rejuvenation: Re-establishing natural mountain springs in the Himalayas to prevent downslope runoff and secure water tables for hill communities.

Water Stress Threshold: 1,700 cubic meters per capita.
Water Scarcity Threshold: 1,000 cubic meters per capita.
Community-Led Water Budgeting Scheme: Atal Bhujal Yojana (ABY).
Subsurface Mapping Tool: NAQUIM (CGWB administered).
Water Consumption embedded in Crop Exports: Virtual Water.
Major Water Guzzler Sector: Agriculture (87% of groundwater).
Rural Tap Water Mission: Jal Jeevan Mission (includes greywater recycling).

Notes updated up to March 2026. Sources: CWC Bulletins, CGWB Resource Assessment.