In a world where climate resilience and water security are top priorities, Digital Paani is building a powerful, technology-driven bridge between wastewater treatment and sustainable water reuse. Based in Gurgaon, this forward-thinking startup is on a mission to decarbonize India’s water infrastructure and unleash the untapped potential of wastewater. And at Climate Angels, we saw not just a compelling vision—but a business model built to scale, create impact, and deliver strong returns.
The Problem: Wastewater Infrastructure is Broken
India produces over 60 billion liters of wastewater daily, yet more than 75% of its treatment plants are either non-functional or underperforming. Operators often work manually, dealing with outdated processes, poor plant design visibility, and frequent breakdowns. This results in untreated sewage polluting our water bodies, risking public health, and causing huge compliance and operational costs for commercial and industrial players alike.
This is not just a regulatory or infrastructure failure—it’s a missed opportunity. Treated wastewater could meet up to 65% of urban and industrial water needs. But until now, there’s been no scalable, tech-enabled way to close this gap.
Enter Digital Paani: A Full-Stack Wastewater Ops Platform
Digital Paani is not just another monitoring dashboard. It’s an expertise-driven, full-stack lifecycle management platform for wastewater treatment. Combining IoT sensors with AI-powered software, it doesn’t just show plant data—it drives daily operations.
Here’s how it works: the platform maps each facility’s unique configuration, sets ideal parameters, guides operators through workflows, diagnoses issues in real time, and automates corrective actions. Whether it’s maintaining optimal biological health, preventing pump failures, or managing chemical dosing, the system doesn’t wait for humans to react—it intervenes.
With this integrated approach, Digital Paani turns reactive, error-prone STP (Sewage Treatment Plant) operations into predictive, efficient, and low-touch systems.
The Founders
At the heart of Digital Paani is a rare and powerful leadership team. The father-daughter duo of Rajesh and Mansi Jain blends decades of water sector expertise with cutting-edge environmental tech.
Rajesh Jain, a veteran water systems engineer and founder of Enhanced Wapp Systems, brings three decades of execution experience and technical depth. Mansi Jain, a Stanford-trained environmental economist, returned to India after global stints with the California Governor’s Office, WWF, and NRDC to solve water issues at scale.
Their complementary skill sets—one rooted in hardcore engineering, the other in global climate-tech strategy—have made Digital Paani both credible and visionary from day one.
Why We Invested: Our Investment Thesis
At Climate Angels, we look for startups that align climate impact with commercial viability. Digital Paani checked all the boxes:
Massive Market Need: With over 85,000 STPs in India—75% of them non-functional—the addressable market is enormous. The sector is ripe for disruption, and regulations are increasingly mandating compliance.
Tech-First, Ops-Led: Unlike traditional players that offer static dashboards, Digital Paani’s software actually drives operations. It solves real operational pain points for customers, leading to high retention and ROI.
Strong Traction: In just a short time, the startup has signed up marquee clients like Tata Power, Delhi Jal Board, and Reliance. With 100+ facilities in the pipeline and 3x YoY growth in paying customers, the GTM playbook is clearly working.
Recurring Revenues: Majority of revenue comes from SaaS-style subscriptions, which means predictable cash flow and strong margins. Their dual model—software-only or full-ops management—also allows flexibility across customer segments.
Scalable and Replicable: With their current playbook working across residential, commercial, and municipal clients, expansion into industrial and international markets is the natural next step. Southeast Asia and the Middle East—regions facing similar water stress—are already on the radar.
Climate Impact Embedded: Every liter of treated wastewater represents a tangible win for the environment. The company’s 5-year impact target: preventing 195 million liters of sewage from entering our ecosystems.
The Road Ahead
Wastewater treatment is no longer a back-end utility function—it’s becoming central to ESG compliance, resource resilience, and urban sustainability. With its integrated product, proven traction, and high-impact mission, Digital Paani is perfectly positioned to lead this transformation.
At Climate Angels, we believe the next generation of climate tech winners will be those that combine deep domain expertise with scalable technology. Digital Paani exemplifies this—and we’re proud to be part of their journey.
