How the industrial siting framework and the water treatment buildout are solving different parts of the same problem -- in the same geography, at the same time
India uses approximately 740 billion cubic metres of water annually.
Agriculture consumes 83% of that. Industry -- which generates 30% of GDP -- uses 8%.
The water treatment sector being built right now, the one attracting serious government spending and investor attention, addresses domestic and industrial demand.
That is 17% of total water use.
The remaining 83% is agriculture. No EPC contract reaches it.
No order book expansion changes how irrigation water is priced, allocated, or consumed.
The observation this article makes is simple and has not been held clearly in most infrastructure analysis: India is running two large policy programs simultaneously -- one solving a visible infrastructure gap, one building an industrial future -- and neither prices water in a way that accounts for what the other is doing.
What the Financials Show When Read Carefully
The water treatment investment case rests on three verifiable foundations.
Government spending is real and growing.
Ministry of Jal Shakti budget allocations moved from Rs 31,000 crore in FY19 to Rs 99,500 crore in FY26.
Crisil projects Rs 14 lakh crore of total water sector investment over the next five years, roughly 1.2 times cumulative investment from FY19 to FY25.
India generates approximately 72,000 million litres of wastewater daily and treats 28% of it. The gap is large, measurable, and responds to capital.
Order books provide medium-term visibility. Wabag's stood at approximately Rs 13,600 crore as of March 2025 -- an order-to-revenue ratio of 4.14x, roughly four years of current revenue forward. EMS was at 2.46x. Enviro Infra at 1.11x.
That last number deserves attention. Enviro Infra grew revenue at a 71% CAGR between FY21 and FY25.
A 71% CAGR with 1.11x order coverage means the growth trajectory requires continuously winning new contracts at a pace simply to sustain its current run rate. That is a different risk profile than the headline number communicates.
Operating margins are split into two distinct groups.
Most EPC players -- Wabag, Welspun, Ion Exchange -- run at 10-15% EBITDA. Enviro Infra and EMS report 25-26%.
The explanation: both avoid subcontracting at the current scale and operate asset-light models.
Enviro Infra cites proprietary process design. EMS concentrates on sewage treatment, which carries better margins than water supply, and rents rather than owns equipment.
Both explanations are accurate now. The EPC scaling problem is that a business model producing 25% margins at Rs 400 crore revenue often requires subcontracting at Rs 1,500 crore, compressing margins toward sector norms.
Pricing current-scale margins into a forward valuation without a compression assumption is pricing the wrong future.
Cash conversion is the operative metric, not margins.
In FY25, only Wabag converted net profit into actual operating cash -- cash flow from operations to PAT ratio exceeding 1.
EMS was at 0.18. Welspun and Enviro Infra both reported negative operating cash flows.
Enviro Infra's 25-26% EBITDA margins are real. The cash behind them is sitting in receivables while the government payment cycles process.
Wabag's trade receivables stood at 61% of sales in FY25. A company can report genuine profits and consume cash simultaneously.
In a government-dependent EPC business, this is the base operating condition, not an aberration.
Two responses are emerging at the sector level.
Wabag owns no construction machinery -- management describes its only assets as technology and people, improving return on capital by removing the fixed asset base that sits idle between project cycles.
More consequentially, the sector is shifting toward Operations and Maintenance contracts.
Construction contracts run 2-3 years. O&M contracts run up to 15 years at EBITDA margins of 30-35%, well above project work.
Wabag earns approximately 18% of revenue from O&M, targeting 20%. The business case is clear. The pace depends on the stock of completed plants available to operate.
Desalination sits alongside all of this. India has 11,000 kilometres of coastline, desalinating 6 million cubic metres per day against Saudi Arabia's 11.5 million.
Wabag is the third-largest global desalination supplier by installed capacity and received orders worth approximately Rs 1,500 crore in Andhra Pradesh and Chennai recently.
Desalinated water costs approximately Rs 0.10 per litre to produce against Rs 0.08 for pipe-supplied freshwater. Energy represents roughly one-third of operating cost.
Indian industrial energy pricing varies by state and policy cycle in ways that make long-run project economics genuinely uncertain. Coastal expansion is happening. It is not approaching the scale of the underlying problem.
The Geographic Collision Neither Program Has Named
A semiconductor fabrication plant consumes approximately 38 million litres of ultra-pure water per day. That is the daily water usage of 62,000 urban households, from one facility. A mid-sized data centre uses around 5 million litres daily.
These facilities are being built in Gujarat, Uttar Pradesh, and Punjab -- states already classified as water-stressed by India's Central Water Commission.
The geographic concentration reflects where land acquisition is manageable, where power infrastructure exists, and where policy incentives are most concentrated. These are legitimate industrial siting considerations. Water cost does not appear among them.
NITI Aayog estimated that by 2030, domestic water demand will exceed supply by 50 billion cubic metres. By 2050, total demand could reach double the available supply.
The World Bank projects India's urban population doubling to roughly 950 million by then. These projections are built on current trends. The semiconductor and data centre buildout is not yet fully reflected in them.
India's irrigation efficiency sits at 38%, against a global average of 50-60%. Paddy, sugarcane, and wheat together account for 80% of all irrigation water.
Producing one kilogram of rice requires approximately 2,500 litres. One kilogram of sugar requires 3,000 litres.
India grows both at scale beyond domestic nutritional requirements, with water priced at near zero in most state procurement frameworks.
The water embedded in agricultural exports leaves the country without being valued in the transaction price.
The water consumed by semiconductor fabs and data centres in Gujarat and Punjab will be drawn from aquifers already under stress from that same agricultural use.
The treatment capacity being built addresses 17% of India's water demand. The industrial arrivals in the same geography are compounding pressure on the 83% that treatment does not reach.
This is not a design failure by any single ministry.
It is what happens when two policy programs -- one closing a visible infrastructure gap, one building an industrial future -- operate with separate mandates, separate budget lines, and no shared accounting for water as a finite input into both.
The incentive framework that makes Gujarat and Punjab attractive for semiconductor investment is the same framework that has made those states attractive for water-intensive agriculture for decades.
Neither framework has a water price signal strong enough to change location decisions. The collision is rational from inside each program. It is only visible from the outside of both.
What the Reader Now Holds
The investment thesis for listed Indian water companies is internally coherent.
Government spending is real. Order books provide genuine forward visibility for larger players. The O&M transition is improving revenue quality, where it has taken hold.
Wabag's cash conversion in FY25 was the clearest signal of a company managing the sector's structural constraints rather than deferring them.
The national water problem is structurally larger than what that thesis addresses.
The companies being rewarded for solving India's water crisis are solving the 17% that responds to contracts, capital, and EPC execution.
The 83% -- agriculture, irrigation efficiency, crop pricing frameworks, aquifer depletion -- requires a different set of actors, a different set of policy instruments, and incentive structures that do not yet exist in the form the problem demands.
Both programs are operating. Both are rational on their own terms.
The collision between them is real and is not yet priced into either the investment thesis or the industrial siting decisions being made in water-stressed states right now.
India is building water treatment capacity and semiconductor fabs in the same stressed geography at the same time.
One is described as solving the water problem. The other is not described in water terms at all.
Both descriptions are accurate.
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