Water Security in India

Context

Indian cities are increasingly experiencing severe water stress, making water security one of the most critical development challenges of the 21st century. Rapid urbanisation, climate change, groundwater depletion, and inefficient water management have intensified the pressure on India's limited freshwater resources.

Strengthening sustainable, integrated, and climate-resilient water management systems is therefore essential to ensure long-term water security.

Understanding Water Security

Water security refers to the ability of a country or region to ensure adequate availability of safe, affordable, and sustainable water for domestic consumption, agriculture, industry, ecosystems, and economic development while protecting communities from water-related disasters such as droughts and floods.

It encompasses not only the availability of water but also its quality, accessibility, efficient management, and long-term sustainability.

Current Status of Water Scarcity in India

• Water scarcity has emerged as a global challenge, with nearly three-fourths of the world's population living in water-insecure countries.

• Approximately 4 billion people experience severe water scarcity for at least one month every year.

• India faces an even greater challenge because it possesses only 4% of the world's freshwater resources while supporting nearly 18% of the global population.

• According to research conducted by the Council on Energy, Environment and Water (CEEW), 11 out of India's 15 major river basins are already experiencing water stress, with annual water availability falling below 1,700 cubic metres per person, which is internationally recognised as the threshold for water stress.

• Several important river basins, including the Krishna, Cauvery, Mahi, and Tapi, have annual per capita water availability below 1,000 cubic metres, placing them in the category of water-scarce basins.

Major Challenges to Water Security

Water Pollution

The quality of India's freshwater resources is deteriorating due to the discharge of industrial effluents, untreated sewage, and agricultural runoff containing fertilizers and pesticides.

Pollution has significantly degraded rivers, lakes, wetlands, and groundwater resources, reducing the availability of safe water for drinking, irrigation, and industrial purposes.

High Conveyance Losses

A substantial quantity of water is lost before reaching consumers because of ageing pipelines, leakages, and inefficient distribution infrastructure.

These conveyance losses reduce overall water-use efficiency and increase the cost of supplying water to households and industries.

Insufficient Wastewater Treatment

India continues to face inadequate wastewater treatment capacity.

Large volumes of untreated sewage are discharged into rivers, lakes, and other water bodies, resulting in severe pollution and making these resources unsuitable for human use and ecological sustainability.

Climate Change

Climate change has intensified water insecurity by increasing temperatures, altering rainfall patterns, and causing more frequent droughts, heatwaves, and extreme weather events.

Erratic monsoons have reduced the predictability of water availability and increased pressure on both surface water and groundwater resources.

Overexploitation of Groundwater

India is the world's largest user of groundwater, with excessive extraction for agriculture, industry, and domestic consumption.

Continuous overexploitation has resulted in declining groundwater levels across many regions, threatening long-term water availability.

Rapid Urbanisation and Industrialisation

Rapid growth of cities has significantly increased the demand for water.

Expanding urban populations, industrial activities, and infrastructure development have placed enormous pressure on existing water supply systems, many of which are already overstretched.

Water-Intensive Agriculture

Agriculture consumes nearly 80% of India's freshwater resources.

The cultivation of water-intensive crops such as paddy and sugarcane, particularly in water-deficient regions, has reduced overall water-use efficiency and accelerated groundwater depletion.

Government Initiatives to Strengthen Water Security

Jal Jeevan Mission

The Jal Jeevan Mission aims to provide Functional Household Tap Connections (FHTCs) to every rural household while strengthening sustainable water conservation through improved water supply infrastructure.

The mission also promotes rainwater harvesting, efficient water management, and improved irrigation under the concepts of Jal Sanchay (water storage) and Jal Sinchan (efficient water application).

River Basin Management (RBM) Scheme

The River Basin Management Scheme promotes integrated planning, scientific investigation, and coordinated development of water resources at the river basin level.

The scheme seeks to improve water allocation and ensure sustainable management of entire river systems rather than isolated water bodies.

National Water Mission

The National Water Mission, one of the eight missions under the National Action Plan on Climate Change (NAPCC), focuses on water conservation, minimising wastage, improving water-use efficiency, and ensuring the equitable distribution of water resources.

Pradhan Mantri Krishi Sinchai Yojana (PMKSY)

The Pradhan Mantri Krishi Sinchai Yojana (PMKSY) aims to expand irrigation coverage while promoting efficient water use through the principle of "Per Drop More Crop."

The scheme encourages the adoption of modern irrigation technologies to improve agricultural productivity while conserving water.

Micro-Irrigation Fund

The Micro-Irrigation Fund supports states in expanding drip irrigation and sprinkler irrigation systems, which significantly improve water-use efficiency compared to conventional flood irrigation.

Atal Bhujal Yojana

The Atal Bhujal Yojana promotes community-led groundwater management in water-stressed regions.

The programme encourages behavioural change, local participation, and sustainable groundwater extraction through scientific planning and community ownership.

Measures Needed to Strengthen Water Security

Climate-Proof Water Infrastructure

• India must invest in climate-resilient water infrastructure by conducting granular climate risk assessments of water supply systems, reservoirs, drainage networks, and urban infrastructure.

• These assessments will help prioritise investments in highly vulnerable regions, particularly coastal cities and low-lying areas.

• Existing funding mechanisms such as the Urban Challenge Fund (UCF) can support such initiatives.

• For example, Visakhapatnam (Andhra Pradesh) recently secured ₹1,501 crore under the Urban Challenge Fund for water supply and drainage improvements, part of which can strengthen climate resilience.

Adopting a Circular Water Economy

India should shift from the traditional linear model of water use to a circular water economy, where treated wastewater is reused instead of being discarded.

Recycled water can be utilised for landscaping, car washing, industrial cooling, construction activities, and data centre operations, thereby reducing pressure on freshwater resources.

Expanding Micro-Irrigation

• Large-scale expansion of drip and sprinkler irrigation is essential to improve agricultural water efficiency.

• Government subsidies should be redesigned to better support small and marginal farmers, for example by considering 0.4 hectares instead of one hectare as the base unit for assistance.

• Farmers should also be encouraged to diversify towards low-water, high-value crops such as horticulture and oilseeds, as successfully demonstrated in Rayalaseema (Andhra Pradesh).

Strengthening River Basin Data Systems

• Effective water governance requires comprehensive data on water withdrawals, distribution losses, consumption patterns, and river basin hydrology.

• Currently, India lacks sufficient basin-level data, making it difficult to allocate water efficiently and assess conservation outcomes.

• Developing integrated river basin information systems would significantly improve evidence-based policymaking.

Artificial Intelligence and Smart Water Management

• The use of Artificial Intelligence (AI) and smart water technologies can revolutionise water management.

• AI-based monitoring systems can detect pipeline leakages, estimate transmission losses, and optimise water distribution.

• Cities such as Delhi and Bhubaneswar have already begun installing smart bulk water meters to identify physical losses and improve distribution efficiency.

Importance of Water Security

• Water security is fundamental to achieving food security, energy security, public health, economic growth, and environmental sustainability.

• Reliable access to water supports agriculture, industries, urban development, biodiversity conservation, and climate resilience.

• Therefore, water should be viewed not merely as a natural resource but as a critical economic, social, and ecological asset.

Conclusion

India's growing water crisis requires a comprehensive shift towards integrated, climate-resilient, and sustainable water governance.

While government programmes have laid a strong foundation, long-term water security will depend upon scientific planning, efficient water use, technological innovation, community participation, and strong political commitment.