Q.It is said that the water resources in India have been depleting very fast. Discuss the factors responsible for depletion of water resources?

The rapid depletion of water resources in India is driven by a combination of rising demand, poor management, and environmental change.

• Population growth and urbanisation have massively increased the demand for water for domestic use, while industrial expansion consumes large quantities for manufacturing and cooling processes.
• Agricultural practices are the biggest culprit: the Green Revolution promoted water-intensive crops like rice and sugarcane, and the widespread use of tube wells and pumps has led to over-extraction of groundwater, far exceeding natural recharge rates.
• Poor water management includes leaky supply systems, inefficient irrigation methods (like flood irrigation), and the lack of rainwater harvesting in most urban and rural areas.
• Pollution from industrial effluents, agricultural runoff (fertilisers and pesticides), and untreated sewage has made many surface and groundwater sources unfit for use, effectively reducing the usable water stock.
• Deforestation and climate change have altered rainfall patterns, reduced groundwater recharge, and increased the frequency of droughts, further stressing already depleted basins.

Water is the one resource that sustains everything — agriculture, industry, households, and ecosystems — yet across India, the signs of depletion are unmistakable: wells running dry, rivers shrinking, groundwater tables falling year after year. This is not a sudden crisis but the cumulative result of several interlinked human and natural pressures that have built up over decades.

The single biggest factor is over-extraction of groundwater. Since the Green Revolution of the 1960s and 1970s, India has relied heavily on tube wells and bore wells to irrigate water-guzzling crops like paddy and sugarcane. Government subsidies on electricity for pumping water have encouraged farmers to draw water without restraint. In states like Punjab, Haryana, and western Uttar Pradesh, groundwater levels are falling by as much as half a metre every year. The problem is that groundwater is a common-pool resource — no one owns it, so everyone races to pump it before the neighbour does, leading to what economists call the “tragedy of the commons.”

A second major factor is inefficient water use in agriculture. Indian farming still relies heavily on flood irrigation, where water is simply allowed to run across fields. Much of it evaporates or percolates away unused. Drip irrigation and sprinkler systems, which can cut water use by 30–50%, cover only a tiny fraction of the cultivated area. The result: we use three to four times more water per kilogram of crop than countries with efficient irrigation.

Third, rapid urbanisation and industrialisation have placed enormous new demands on water. Cities like Bengaluru, Chennai, and Delhi have seen their populations explode, but water supply infrastructure has not kept pace. People drill private bore wells deeper and deeper, often illegally, while municipal water losses through leaky pipes can exceed 40%. Industries — from textiles to thermal power plants — consume vast quantities of water and often discharge untreated effluents into rivers, making the remaining water unusable downstream.

Fourth, climate change is altering the very pattern of water availability. The monsoon, which supplies 80% of India’s annual rainfall, has become more erratic — longer dry spells punctuated by intense, short bursts of rain that run off the land rather than soaking in. Glaciers in the Himalayas, which feed the Ganga, Indus, and Brahmaputra, are retreating. This means less snowmelt in the summer months when rivers need it most. The result is more frequent droughts in some regions and devastating floods in others — both forms of water stress.

Fifth, there is the problem of poor water management and governance. India has a federal structure where water is a state subject, leading to fragmented policies. There is little coordination between states sharing a river basin. Dams and canals, built at great cost, often silt up or fall into disrepair. Rainwater harvesting, which could recharge aquifers, is still not mandatory in most states. And the pricing of water — whether for irrigation or domestic use — is so low that it gives no incentive to conserve.

Finally, changing lifestyles and dietary habits add to the pressure. As incomes rise, people eat more meat and dairy, which require far more water to produce than grains or vegetables. Urban households use washing machines, dishwashers, and flush toilets that consume large volumes of treated water. The cultural shift from community wells and tanks to individual piped connections has also reduced the traditional practices of sharing and conserving water.