From Scarcity To Security: India's Water Turning Point

India is also one of the world’s largest groundwater users, with about 230 to 250 km³ groundwater extracted per year, wherein most withdrawals are intended to support irrigation, says a World Bank report. While agriculture accounts for around 80 per cent of total water use, urbanisation continues to add pressure as well.

As cities grow, about 40 to 50 per cent of the water supplied is lost to leaks and theft, known as non-revenue water. India also treats only a fraction of the wastewater it generates leaving large volumes discharged to rivers and lakes, according to the Central Pollution Control Board’s wastewater treatment analysis report. 

National assessments warn that climate variability is intensifying extreme weather events, ranging from downpours, flash floods, and more frequent droughts. These result in raising volatility in recharge and supply of groundwater. Historic assessments placed India 120/122 on a water quality index cited in WaterAid-linked analyses, reflecting widespread contamination concerns. 

Key Principles 

Principle of inter-generational equity states that every generation holds Earth in common, and natural resources must be used judiciously and for the common benefit of all. We must establish authorities for coordinated planning, enforcing the polluter pays principle to penalise industrial polluters, and strengthening citizen charters to guarantee equitable access to water as a basic right are central.

It is equally important to understand the importance of preventive measures. The precautionary principle affirms that even where scientific certainty is incomplete authorities should anticipate risks and act to prevent environmental degradation and that the State has a social responsibility to protect the public from plausible risks. These principles provide the normative architecture for the reforms above and connect governance, markets, and community stewardship.

Legal frameworks must also evolve. Policy and legal reforms should culminate in a comprehensive National Water Policy that codifies basin planning, reuse standards and equitable service levels, and while Article 21 of the Constitution (Right to Life) has been interpreted to include the right to clean water, there is no explicit right-to-water law in India. South Africa, for instance, has declared water a constitutional right, a move that India could emulate.

A Blue Playbook For India’s Future

To secure its water future, India must act on multiple fronts. Countries like Israel and Singapore provide valuable lessons on how proactive planning and technological innovation can transform water-scarce nations into water-secure ones. For instance, Israel reuses a whopping 90 per cent of treated wastewater mostly for agriculture, supplied through desalination, facilitated by water pricing, metering, and strong utility governance.

Let us also look at Singapore’s “Four National Taps” strategy. It involves local catchments, imports, NEWater (which is high-grade reclaimed water), and desalination. It is an exemplary example for how diversified portfolios and public campaigns have the potential to deliver essential services reliably. 

India’s policies too, in contrast, have promoted important measures such as rainwater harvesting and groundwater recharge, but implementation at scale and the economics of pricing remain the sticking points. Thus, addressing India’s water crisis requires a combination of traditional wisdom and modern innovation. 

Rainwater harvesting at scale should be mandated and incentivised in all urban and semi-urban areas, with tax incentives tied to verified performance, as has been stated in the Urban Local Bodies and MoHUA, Rainwater Harvesting Notifications and Toolkits. India further needs an integrated water resource management a framework that considers the interconnectedness of ecosystems, agriculture, urban planning, and industry. 

Technological interventions such as desalination powered by renewables, air-to-water machines, and real-time water quality monitoring are gaining traction globally and could be scaled up in India, while greywater reuse where wastewater from sinks and showers is recycled for non-potable uses can reduce the demand for freshwater in urban settings.

Techniques like permeable pavements and green roofs can reduce urban flooding while promoting groundwater recharge. Smart irrigation systems, drip and sprinkler, can cut agricultural water usage by up to 50 per cent in suitable crops and soils when paired with agronomy support. Several community-based water management initiatives, such as those seen in states like Rajasthan (Johads) and Maharashtra offer replicable models of local ownership and participatory governance. 

Innovative Measures

A complementary set of urban and frontier solutions can expand resilience without imposing prohibitive costs. 

Sponge cities deploy green-blue infrastructure to absorb, retain, and slowly release rainwater, easing the load on drains while replenishing groundwater.

Fog harvesting systems use mesh collectors to condense coastal and hill-fog into usable water for drinking and micro-irrigation, and atmospheric water generation can provide decentralised potable water in remote and disaster-hit areas

Biomimicry inspired materials like super-hydrophobic coatings and leaf-like condensers reduces cleaning water needs and improves low-energy capture.

Aquaponics couple’s aquaculture with hydroponics so that fish effluent fertilises plants and plants bio-filter water, conserving water and reducing fertiliser demand. 

Sensor-guided smart irrigation schedules watering by soil moisture and weather, reducing waste while stabilising yields. 

Desalination powered by renewables lowers the carbon intensity of coastal supply while building drought buffers. 

Water ATMs or water kiosks dispense treated water through refill cards or QR codes, improving access and reducing single-use plastics where household connections lag.

Greywater reuse captures lightly used water from showers, sinks, and laundry for toilet flushing, landscaping, and street-tree watering, cutting potable demand and sewer loads. 

The Way Forward

India’s water challenge is solvable with better governance, measured economics, and nature-aligned engineering. Countries that price scarcity, reuse water, and plan at basin scale have built resilience. With India’s depth of traditional stewardship and modern technology, the task now is to coordinate and scale what works from farms to cities, from wetlands to utilities. The time to act is now so that what we “borrow from our children” is returned in better condition than we found it. 

(The writer is a research fellow at IIM-Ahmedabad. Views are personal.)