Building a climate-tech startup in India: Lessons from solving real-world water challenges

India’s fresh water supply crisis is no longer a future threat but is here now, being played out in real-time across many cities in the country. 

More than half of the fresh groundwater wells have experienced reduced levels; all of this is confirmed through government-funded studies. The cities of India have already started to feel the strain in their water systems. For instance, the ‘Day Zero’ crisis Chennai experienced in 2019 and the continuous failure of borewells in Bengaluru are both indicators of how fragile our urban water systems are. Based on estimates from NITI Aayog, by 2030, nearly 40% of the Indian population may have no access to reliable drinking water at the source.

For many of the new generation of climate-tech founders, this isn’t just another ‘problem’ to be solved; rather it is the defining challenge. 

Water represents a confluence of rapid urbanisation, industrial demand, climate uncertainty, and policy fragmentation. Creating solutions in this industry does not follow a standard business model; it is all about navigating through real and immediate constraints, and it will teach you lessons that extend well beyond anything you will learn in a business programme.

Here are four of the sharpest lessons.

The problem has to be lived before the solution becomes credible

There is a particular trap that technology founders fall into early: they understand the problem intellectually before they have experienced it viscerally. This distinction matters enormously in climate-tech, where the people most affected by a problem are often not the people with access to the solution.

Water scarcity in Indian cities does not announce itself in boardrooms. It shows up in a facility manager’s emergency tanker call at 7 am in June. In a borewell contractor’s report that the water table has dropped another 200 feet. In a community that has normalised buying water that should be free.

Climate-tech founders who spend time in these realities, and not just studying them, build differently. They prioritise reliability over features, deployment speed over elegance, and field robustness over lab performance. The most important R&D lab is the first operational site.

Product innovation isn't a separate endeavor from business model innovation – it will be your product.

In India, there is a pattern: the technology is already present, but there has been insufficient adoption due to the commercial model not aligning with the reality of the purchaser. This is especially apparent in the climate-tech arena where the costs of hardware are high, the procurement process is lengthy, and the decision-maker is generally operating within a restricted capital budget. 

The takeaway from this is structural. A game-changing technology that places a lot of upfront capital risk in the hands of the buyer will not be able to scale to the level that the climate crisis requires. Therefore, the financing and payment structures of any solution (who pays, when, how much and what they are actually paying for) should be constructed with as much consideration as the technical aspects of that solution.

Across sectors, the climate-tech companies gaining traction in India are those that have figured out how to convert capital expenditure into operational expenditure, how to absorb technical risk on behalf of the customer, and how to price outcomes rather than hardware. The business model is not packaging. It is strategy.

India’s conditions are not edge cases. They are the specification.

Research papers model average conditions. India delivers extremes.

Temperature cycling, power fluctuations, dust, monsoon humidity, remote deployments with unreliable logistics: these are not complications to be handled in a later product version. They are the baseline operating environment. Climate-tech hardware that is not built for Indian conditions from day one will fail in the field, often in ways that cannot be predicted from a controlled environment.

This has a specific implication for founders: get to field deployment faster than feels comfortable. The feedback from a system running in a 42-degree summer in Rajasthan, or a high-humidity coastal installation, or an industrial site with unpredictable power supply, is irreplaceable. Every failure in the field is a product specification that no internal testing would have surfaced.

India’s engineering conditions are not a liability for climate-tech startups. They are a forcing function for resilience—and resilience is ultimately what makes a solution exportable to every other difficult market in the world.

In infrastructure adoption, trust is the rate-limiting variable

The procurement of water for an enterprise, energy management, and climatic infrastructure related decision-making tend to slow down not due to urgency from decision-makers, but rather due to the large impact and visibility of failure if they are deployed. If a building loses all of its water, or a system fails to deliver at peak use times, then approval of either decision by an individual can create risk for that individual within the institution/organisation.

This means that reference deployments carry disproportionate weight in climate-tech sales cycles. A single well-documented, high-credibility deployment in a demanding operational environment does more to compress future sales cycles than any amount of marketing. The early customer is not just a revenue event, they are the proof architecture that makes all subsequent conversations faster.

For founders navigating this reality: patience is not passive. It means investing deliberately in deployment quality, documentation, and relationship depth at early sites. The institutional trust built in year two determines the growth trajectory in year four.

The crisis is the context, not the pitch

India’s water crisis, energy transition challenge, and climate adaptation imperative are not marketing backdrops for climate-tech companies. They are the structural conditions that determine whether a startup’s solution is urgent or optional, systemic or marginal.

Founders who understand this build differently. They track policy shifts, groundwater data, seasonal weather patterns, and regulatory changes not as market intelligence exercises, but because these forces directly shape the conditions their technology operates in. The climate crisis is not tailwind; it is terrain.

The author is CEO & Founder, AKVO, a sustainable water technology startup.