#12: Why Groundwater Meets 60% of India's Irrigation Needs! This is a CRISIS!
India is the world's largest extractor of groundwater, pumping more each year than the United States and China combined.
India's groundwater is vanishing – and with it, the promise of India's food security.
In village after village, farmers watch their wells go dry or turn brackish, unable to feed thirsty fields. This is no distant doomsday scenario; it's unfolding now beneath our feet.
The country is the world's largest extractor of groundwater, pumping more each year than the United States and China combined.
This invisible resource powers our agriculture, but decades of unchecked abuse have pushed it to the brink.
This newsletter is a part of Zero1 Writers Network, made possible with much support from Zerodha.
The Water Depletion in India’s Breadbasket
Groundwater now meets over 60% of India's irrigation needs, propping up the nation's food supply. Yet those same aquifers are being drained at unsustainable rates.
Government surveys show that 14% of India's groundwater blocks are categorised as "over-exploited" – meaning we suck out more water than rain and rivers can refill. An additional 18% are in critical or semi-critical status.
In the breadbasket states of Punjab, Haryana, and Rajasthan, farmers are pumping over 100% of the annual replenishable groundwater – in Punjab it's an astonishing ~157%. In plain terms, these regions are using far more water than nature puts back, year after year.
Deep borewells and powerful pumps mask this gaping deficit for now, but aquifers cannot give what they no longer have.
The implications are dire and immediate.
Agriculture gobbles up about 87% of all groundwater extracted in India, roughly 208 billion cubic meters out of 239 bcm annually. So when the wells run dry, the fields turn barren.
Two-thirds (63%) of India's districts already face falling groundwater levels, and if current trends persist, at least 25% of India's agriculture will be at risk.
These aren't abstract percentages – they translate to millions of hectares of crops and hundreds of millions of people.
More than half a billion Indians rely on groundwater for their livelihoods. Many are small farmers who have no canal irrigation or big reservoirs to turn to; the water beneath their land is their lifeline.
As that lifeline shrinks, their incomes and food security shrivel.
Already, studies have found poverty rates 9-10% higher in districts where groundwater tables fell below 8 meters because small farmers struggle to reach water at such depths.
Groundwater has been the unsung hero, enabling India's Green Revolution and food self-sufficiency. It turned parched plains into rice and wheat granaries.
But now the very resource that made India food-secure is itself in crisis.
We are, in effect, feeding ourselves by mining our future – a fact made stark by experts who warn that India is "feeding its population by over-drafting groundwater" and could lose its capacity to produce food in the coming decades if this continues.
Evidence of this slow-motion disaster is everywhere if one chooses to see it.
Satellite measurements and field studies show massive groundwater losses across India's heartland.
In just the past two decades (2002–2021), north India lost about 450 cubic kilometres of groundwater – an almost inconceivable volume (for perspective, that's 37 times the water held in India's largest reservoir).
Closer to the ground, an IIT Delhi–NASA study found that Punjab and Haryana alone depleted 64.6 billion cubic meters in 17 years.
Farmers in central Punjab today often drill 150 to 200 meters deep in desperate search of water – a depth unthinkable a generation ago.
The state's own data are alarming: 78% of Punjab's area is now classified as a "dark zone" for groundwater, essentially a warning that the land of five rivers is running out of its hidden sixth river underground. In 2000, water could be found at 30–35 meters (about 110 feet) in much of Punjab; now it's down to 140 meters (450+ feet).
If this trajectory continues, projections suggest groundwater may drop to 300+ meters by 2039, rendering large swathes of Punjab barren.
The story is similar in Rajasthan and Haryana, and in parts of southern India where tube wells have to chase the water table ever deeper each year.
What does this mean for India's ability to feed itself?
Farmers are forced to cut back on watering or planting as water tables fall. Research in Science warns that, at current depletion rates, India's farmers may lose the ability to plant nearly one-fifth of their crops nationwide.
Cropping intensity – the number of crop cycles in a year – will inevitably fall.
In the worst affected regions, they may only grow one crop instead of three, a staggering 68% drop in multi-crop farming.
Think about that: fertile land lying idle for two-thirds of the year because there isn't water to grow food.
Another study projects that by mid-century, yields of staples like rice and wheat could decline by 20% solely due to reduced irrigation water availability.
We are not talking about marginal rainfed fields here, but the loss of production in some of the highest-yield, irrigated farmlands.
The food security gains of the last five decades are at grave risk of unravelling.
India's buffer grain stocks and exports – which the world also relies on since India is the largest rice exporter and a major wheat supplier – would shrink.
In a country where malnutrition is still a concern, any hit to food production can quickly cascade into a hunger problem.
And as supply tightens, food prices will rise, putting pressure on poor consumers.
In short, groundwater depletion is a slow-fuse disaster for our food system – one that will first hurt farmers and then every one of us who relies on affordable food.
As one farmer lamented, "If the well gives way, the field follows." The Science backs up that worry emphatically.
The crisis is compounded by climate change, which acts as a threat multiplier. Rainfall patterns are becoming erratic, monsoons shorter and drier in many regions, pushing farmers to irrigate more from wells when rains fail.
A recent study noted that monsoon rains in north India have declined ~8.5% since the 1950s, while winters have warmed significantly – meaning crops need more water even as less rain arrives.
So farmers pump more to compensate, further depleting aquifers.
It's a vicious cycle: drier monsoons and hotter temperatures drive more groundwater use, lowering water tables and worsening drought impacts. The warming climate is baking our soil dry, demanding more irrigation to maintain yields.
Scientists warn that if current trends and climate projections hold, the rate of groundwater decline could triple by 2080. Triple. That would spell catastrophe – an outright collapse of aquifers and a severe collapse of food production on a scale that could leave millions in peril.
Even well before such extreme scenarios, conflicts are already brewing.
Groundwater depletion has quietly ignited tensions – farmers drilling ever deeper are effectively competing with each other for a shrinking resource, and those who can't afford deeper wells are left high and dry.
There's also a broader security angle: as underground reserves dwindle, pressure shifts to already strained rivers and reservoirs, fueling inter-state water disputes (India has seen dozens of clashes over river sharing in recent years).
Groundwater was the safety valve; as it failed, the whole system came under stress.
Given these ominous realities, one would expect a full-scale mobilisation to save groundwater. The government is finally waking up – but perhaps not fast enough.
To its credit, there have been some positive steps.
India's Ministry of Jal Shakti now conducts annual groundwater assessments (a welcome improvement from once-in-few-years), bringing more attention to the problem.
The data from 2022 even showed a tiny decline in extraction rates compared to 2020, which officials tout as progress.
In 2019, the central government launched the Jal Shakti Abhiyan – a campaign to drive water conservation and rainwater harvesting across districts.
More concretely, it rolled out the Atal Bhujal Yojana (Atal Jal), a ₹6,000 crore program focused on community-led groundwater management in water-stressed regions. This scheme, supported by the World Bank, empowers village committees to monitor usage, draw up water security plans, and revive traditional recharge methods.
Its focus on involving citizens is crucial – after all, groundwater is used by millions of individual farmers, not a centralised utility.
Some states have also taken initiatives:
Punjab and Haryana enacted laws to delay transplanting of paddy rice to conserve groundwater (aiming to align planting with monsoon rains).
Other states are promoting micro-irrigation methods like drip and sprinkler systems under the Pradhan Mantri Krishi Sinchayee Yojana (PMKSY). Through its "Per Drop More Crop" approach, the scheme helps farmers grow more with less water by improving irrigation coverage and efficiency.
There are success stories of community action too – from Rajasthan's Alwar district, where villagers led by the "Waterman of India" Rajendra Singh built thousands of small dams (johads) and revived dried-up rivers and aquifers, to Andhra Pradesh, where farmer groups practice water budgeting.
These efforts show that reversing the decline is possible with collective will.
Even the fact that over 60% of monitored wells showed stable or rising water levels in 2022 hints that aquifers can bounce back where recharge and reduced pumping are happening.
Feeding Scarcity: The Cost of Free Power and Cheap Rice
And yet, these measures are nowhere near the scale or urgency the situation demands.
The modest improvements in some indicators should not close our eyes to the larger trend – groundwater levels in India's key food-producing zones are still plummeting.
The overall extraction may have dipped slightly, but that was likely due to good monsoons or pandemic-related slowdowns, not a structural fix.
Many government actions so far amount to pilot projects or awareness drives, unevenly implemented and woefully underfunded, given the magnitude of the crisis.
Atal Bhujal Yojana, for example, targets a few thousand villages; India has more than 6,00,000 villages. We need that scale multiplied many times over.
Meanwhile, policies that actively encourage groundwater overuse remain in place, undermining conservation efforts.
In Punjab, for instance, successive governments have continued the populist policy of free electricity for farmers' pump sets, a practice legendary agriculturist M. S. Swaminathan himself warned against, noting it "promotes excessive pumping of groundwater".
Free power means pumping water is virtually costless for the farmer, leading to inefficient, long-duration pumping even when not needed – an open invitation to deplete aquifers.
Similarly, subsidised water-guzzling crops (like rice in semi-arid Punjab or sugarcane in drought-prone Maharashtra) are still incentivised through assured procurement or price support. The government spends billions to buy rice at support prices for the Public Distribution System, much of it grown in areas where groundwater is over-exploited.
This creates a perverse cycle: farmers have every reason to produce a water-intensive crop for income and nearly free resources to do so, even though it wrecks the water table.
While some states have tried minor disincentives (Punjab's delayed paddy transplant law saved some water but had side effects, and Maharashtra talks of capping sugarcane in low-water zones), overall there is a lack of a coherent national strategy to shift cropping patterns away from water-intensive crops or to regulate groundwater use firmly.
Groundwater in India is essentially an open-access resource – if you have land and a pump, you can extract as much as you want.
Regulation is minimal; the Central Ground Water Authority essentially issues guidelines and NOCs for industries, but there is scant direct control for agriculture (the biggest user). This needs to change.
We cannot manage what we don't measure or regulate. The absence of clear groundwater rights or pricing means the resource is treated as limitless when it is anything but scarce and overdrawn.
Every delay in serious action is pushing India closer to an agricultural collapse.
This is a ticking time bomb that warrants an emergency response on par with how we'd handle a fast-moving calamity – except this calamity is slow-moving and, hence, easier to ignore until it's too late.
It's heartening that the government acknowledges the issue in speeches and has launched programs, but acknowledgement is not enough.
While positive, the current patchwork of initiatives is grossly insufficient to stem the tide.
Rainwater harvesting structures, watershed development, and efficient irrigation need to become a nationwide mission, not an isolated project.
Urban India, too, must recharge what it draws – cities guzzle groundwater for daily use and often dump the wastewater instead of recharging aquifers.
On the farm front, we need to rethink our cropping calendar and portfolio.
Why should paddy rice (a crop that requires standing water) be grown in the Punjab plains or wheat in water-scarce parts of Rajasthan when alternatives exist?
Diversification into millets, pulses, and oilseeds – generally requiring less water – isn't just good for nutrition; it's becoming imperative for water security.
The Prime Minister recently hailed millet as "Shree Anna" (Nutri-cereals); now that slogan needs to be translated into an actual crop shift on the ground, especially in over-pumped regions.
From Extraction to Action: Rewriting India’s Water Story
Ultimately, saving India's groundwater and, by extension, its food security will require nothing less than a paradigm shift in policy and public behaviour.
We need policymakers to show the courage to reform harmful subsidies and enforce limits on extraction. This might mean politically tough choices like metering farm electricity or capping the depth of wells, but without these, all other efforts can be negated.
At the same time, citizens and farmers have to be at the centre of this fight.
The crisis is too large for a bureaucratic solution alone. Community-led groundwater management, as demonstrated in pockets, must become the norm.
When farmers understand the data – when they see, for example, that their village water table dropped 1 meter this year – they are more likely to unite and act, as has happened in parts of Gujarat and Andhra Pradesh where villagers agreed to stagger pumping or change crops.
Consumer awareness matters, too: urban consumers and policymakers must appreciate that the water footprint of the food we eat is enormous. Every plate of rice or wheat has hundreds of litres of water behind it, mostly groundwater.
If we waste food, we're also wasting that water. Food security doesn't begin and end with growing enough grain; it means doing so sustainably, year after year. There is no food security without water security.
The road ahead is challenging, but there are glimmers of hope.
Technologies like drip irrigation, drought-resistant crop varieties, and better weather forecasting can help farmers use less water per tonne of food.
Traditional wisdom – the kind that villagers like those in Rajasthan employed to recharge wells – can complement modern Science (such as using satellite data to identify depletion hotspots).
The government's promise to double farmers' income must go hand-in-hand with halving their water use through incentives and innovation.
Most of all, what's needed is a sense of urgency and collective will.
Water may be a renewable resource, but groundwater in many Indian aquifers is being mined like a one-time treasure – once exhausted, it could take hundreds of years to refill. We are at the precipice of an irreversible catastrophe.
Will we let India's grain bowls go thirsty?
Will we watch in silence as the underground reservoirs that sustained our civilisation for millennia run dry?
The answer must be a resounding no. Protecting groundwater is not just the government's job; it is everyone's fight – a fight for our right to food, our farmers' survival, and the legacy we leave to the next generation.
If India is to remain food-secure, it has to change its relationship with water – starting now radically.
The warnings are unambiguous, the data is in front of us, and the stakes could not be higher. Every drop of water saved today is a bushel of grain saved for tomorrow. The time for half-measures has passed.
Unless we act decisively to replenish and conserve our groundwater, India may win some battles in food production today only to lose the war against hunger in the near future.
The writing is on the wall, or rather, in the well: a water crisis is a food crisis. India can avert this – but only with bold policy, public participation, and an unswerving commitment to sustainable water use.
The nation's food security hangs in the balance, and the clock is ticking.
Let us not allow India's grain silos to go empty because we ignored the aquifers beneath. It's time to save water, or we will surely lose food.
Much thanks to the support from good folks at Zero1 by Zerodha, making the research for this newsletter possible.
Best,
Jayant Mundhra
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