04 Jul BUILDING WATER SECURITY in a Rapidly Drying India
PRELIMS GS-I GS-II GS-III ESSAY
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📌 WHY IN THE NEWS • The Hindu editorial flags India’s deepening water insecurity — falling rainfall reliability, rising heat, groundwater over-extraction, urbanisation and surging demand. • It calls for integrated water resource management and climate-resilient policy action, at a time when reservoir levels are down and hydrological extremes are intensifying. |
▸ India’s Water Story — In Numbers
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18% of world population |
4% of global freshwater |
~4000 BCM annual rainfall received |
#1 largest groundwater extractor globally |
① KEY DEFINITIONS TO MASTER
These are the highest-yield Prelims one-liners from this topic — expect direct or statement-based questions.
▸ Water Security (UN Definition)
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• The capacity of a population to safeguard sustainable access to adequate quantities of acceptable-quality water for livelihoods, human well-being, economic development and ecosystem preservation. |
▸ The Three Thresholds — Learn by Heart
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Category |
Per Capita Water Availability |
Nature of Shortage |
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Water Stress |
Below 1700 m³ / person / year |
Demand starts exceeding available freshwater |
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Water Scarcity |
Below 1000 m³ / person / year |
Severe shortage affecting daily needs |
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Absolute Scarcity |
Below 500 m³ / person / year |
Critical, life-threatening shortage |
▸ Groundwater & Aquifer
● Groundwater: water stored beneath the Earth’s surface in soil and rock formations (aquifers). India is the largest extractor of groundwater in the world.
● Aquifer: an underground geological formation capable of storing and transmitting groundwater.
② IMPORTANT FACTS FOR UPSC
▸ Water Use Pattern in India
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Sector |
Approximate Share of Freshwater Use |
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Agriculture |
80% – 85% (the biggest consumer) |
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Domestic |
7% – 8% |
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Industry |
5% – 7% |
▸ Groundwater Dependence
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India ≈ 25% of Global Groundwater Extraction • Major groundwater-dependent states: Punjab, Haryana, Rajasthan, Uttar Pradesh, Gujarat and Tamil Nadu. |
▸ Rainfall Characteristics
India receives around 75–80% of its annual rainfall during the Southwest Monsoon — making the country highly dependent on a short, seasonal rainy window
③ MAJOR CAUSES OF THE WATER CRISIS
1. Climate Change
Rising heatwaves, erratic rainfall, cloudbursts and longer dry spells → reduced groundwater recharge and frequent droughts.
2. Over-Extraction of Groundwater
Free electricity + water-intensive crops → rapid, unchecked groundwater depletion.
3. Water-Intensive Cropping
Paddy and sugarcane continue to be grown even in water-deficit regions.
4. Urbanisation
Concrete surfaces reduce infiltration, causing flooding and lower groundwater recharge.
5. Pollution
Industrial waste, untreated sewage and agrochemicals render large volumes of freshwater unusable.
6. Population Growth
Rising demand for drinking water, food production and industrial use.
7. Inefficient Irrigation
Traditional flood irrigation wastes nearly 40–60% of water used.
8. Poor Water Governance
Fragmented institutions, weak enforcement, poor maintenance, and lack of pricing reforms.
④ CONSEQUENCES OF WATER INSECURITY
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Domain |
Key Impact |
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Agriculture |
Lower crop productivity → food insecurity |
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Economy |
Falling industrial production, energy generation & GDP growth |
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Health |
Unsafe water spreads cholera, diarrhoea, typhoid |
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Environment |
Dry rivers, wetland loss, biodiversity decline |
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Social |
Farmer distress, rural migration, water conflicts |
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National Security |
Rising risk of conflict between states, cities & sectors over sharing |
⑤ GOVERNMENT INITIATIVES
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Initiative |
Core Focus |
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Jal Shakti Ministry (2019) |
Integrates water governance under one ministry |
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Jal Jeevan Mission |
Functional tap water connection to every rural household |
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Atal Bhujal Yojana |
Community-led groundwater management |
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PM Krishi Sinchayee Yojana (PMKSY) |
“Per Drop More Crop” — drip & sprinkler irrigation |
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Namami Gange Programme |
River cleaning and rejuvenation |
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National Water Mission |
Water conservation and efficiency |
▸ Important Committees & Reports
● NITI Aayog Composite Water Management Index: Flags groundwater depletion across several Indian cities; shows better governance improves water security.
● Central Ground Water Board (CGWB): Monitors groundwater levels nationally.
● Central Water Commission (CWC): Manages surface water resources.
● UN-Water: Publishes global water security reports.
⑥ WAY FORWARD — MAINS ANSWER TOOLKIT
Use this as a ready-made framework for GS-III / Essay answers on water resource management.
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Strategy |
Key Actions |
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Improve Water Governance |
Basin-level planning; Integrated Water Resource Management (IWRM) |
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Efficient Irrigation |
Drip irrigation, sprinklers, precision agriculture |
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Crop Diversification |
Shift from paddy & sugarcane towards millets, pulses, oilseeds |
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Rainwater Harvesting |
Mandatory in urban buildings, industries and institutions |
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Groundwater Recharge |
Check dams, percolation tanks, wetland restoration |
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Wastewater Recycling |
Reuse treated water for industry, agriculture, landscaping |
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Urban Planning |
Blue-green infrastructure, sponge cities, lake restoration |
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Community Participation |
Water budgeting, Panchayat-level management, local audits |
▸ Global Models Worth Quoting
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🇮🇱 Israel • World leader in drip irrigation • Recycles a large share of wastewater for agriculture • Extensive desalination infrastructure |
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🇸🇬 Singapore • Rainwater harvesting integrated into urban design • NEWater — advanced wastewater recycling • Desalination and smart water management systems |
⑦ PRELIMS QUICK-REVISION CAPSULE
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Memorise Before the Exam • Water Stress threshold = 1700 m³ / person / year • Water Scarcity = 1000 m³ / person / year • Absolute Scarcity = 500 m³ / person / year • Agriculture uses ~80–85% of India’s freshwater • India: 18% of world population, only 4% of freshwater resources • India is the world’s largest extractor of groundwater (~25% of global total) • Southwest Monsoon provides ~75–80% of India’s annual rainfall |
⑧ PRELIMS PRACTICE QUESTIONS
Q1. Consider the following statements regarding water security in India:
1. India possesses nearly 18% of the world’s population but only around 4% of global freshwater resources.
2. Agriculture accounts for the largest share of freshwater use in India.
3. Water stress begins when annual per capita water availability falls below 1700 cubic metres.
Which of the statements given above is/are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3
✔ Answer: (d) 1, 2 and 3
Q2. Which of the following measures can improve groundwater sustainability?
1. Rainwater harvesting
2. Drip irrigation
3. Wetland restoration
4. Excessive pumping from tube wells
Select the correct answer: (a) 1 and 2 only (b) 1, 2 and 3 only (c) 2, 3 and 4 only (d) 1, 3 and 4 only
✔ Answer: (b) 1, 2 and 3 only
⑨ MAINS PRACTICE QUESTION
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GS-III · 250 Words • “Water security is no longer only an environmental concern but a critical issue of economic growth, social justice, and national resilience.” Discuss the major challenges to achieving water security in India and suggest a comprehensive strategy for sustainable water resource management in the context of climate change. |
▸ Suggested Structure
● Introduction: Define water security (UN definition) and link it to economy, health, and security.
● Body — Challenges: Climate change, over-extraction, cropping pattern, urbanisation, pollution, governance gaps (Section 3).
● Body — Strategy: IWRM, efficient irrigation, crop diversification, recharge & recycling, global examples (Section 6).
● Conclusion: Tie back to SDG-6 and cooperative federalism in water governance.
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