Rainmatter by Zerodha Backs Karo Sambhav to Scale E-Waste Recycling

Rainmatter Backs Sustainable Innovation

Zerodha-backed investment initiative Rainmatter has invested ₹56 crore in Gurugram-based circular economy startup Karo Sambhav. The funding marks a significant development for India’s sustainability ecosystem and highlights growing investor interest in climate-tech and resource recovery startups. The investment will help Karo Sambhav expand its infrastructure for recovering critical raw materials from electronic waste and allied waste streams.

Inside Rainmatter’s Investment in Karo Sambhav

Karo Sambhav has secured ₹56 crore in a Pre-Series A funding round led by Rainmatter by Zerodha. Founded in 2017, the startup has spent nearly nine years building a technology-driven circular economy platform focused on e-waste, battery waste, glass recycling, and responsible material recovery.

The fresh capital will primarily be used to scale high-quality recycling infrastructure aimed at recovering critical, precious, and high-value materials from discarded electronic products. The company plans to initially focus on e-waste due to the large concentration of valuable minerals present in end-of-life electronics.

Why Critical Mineral Recovery Matters

As India accelerates its ambitions in electric mobility, renewable energy, electronics manufacturing, and advanced technologies, access to critical minerals such as lithium, cobalt, nickel, graphite, and rare earth elements is becoming increasingly important.

Currently, India remains heavily dependent on imports for many of these materials. Recovering valuable minerals from electronic waste can reduce import dependency, strengthen domestic supply chains, and support the country’s manufacturing ambitions.

The investment aligns with broader national efforts under the National Critical Minerals Mission, which aims to build domestic recycling and processing capabilities for strategically important materials.

Why Investors Are Betting on Climate-Tech Startups

Rainmatter’s investment demonstrates the increasing attractiveness of climate-tech and circular economy startups. As environmental concerns intensify and sustainability regulations evolve, investors are looking for startups capable of delivering both financial returns and environmental impact.

Startups operating in waste management, recycling, clean energy, and resource efficiency are emerging as important players in India’s sustainability transition. The sector is attracting growing interest from venture capital firms, impact investors, and strategic corporate investors.

What This Means for India’s Startup Ecosystem

The funding round signals that climate-tech is becoming one of India’s most promising startup sectors. It also reflects a shift in investor priorities toward businesses solving long-term environmental and industrial challenges.

For startup founders, the development reinforces that significant opportunities exist in sectors beyond traditional consumer internet and fintech businesses. Deep-tech, sustainability, and circular economy startups are increasingly attracting institutional capital and policy support.

Key Lessons for Entrepreneurs

Karo Sambhav’s journey highlights the importance of patient execution in complex sectors. The company operated as a bootstrapped business for years before raising external funding, demonstrating that long-term value creation often requires sustained focus and operational discipline.

Entrepreneurs can also learn from the company’s strategy of addressing large-scale structural challenges. Building solutions around emerging national priorities such as sustainability, critical minerals, and circular manufacturing can create substantial long-term opportunities.

The Opportunity Ahead

India is currently the world’s third-largest generator of e-waste, producing an estimated 4.1 million metric tonnes annually. As consumption of electronics, batteries, and digital devices continues to increase, the volume of recoverable materials is expected to rise significantly.

This creates enormous opportunities for startups operating in recycling, waste management, material recovery, and circular economy infrastructure.

The Road Ahead for Circular Economy Startups

Rainmatter’s investment in Karo Sambhav underscores the growing importance of sustainable innovation in India’s startup ecosystem. As government support, investor interest, and market demand continue to align, climate-tech startups could play a crucial role in building a more resilient and resource-efficient economy.

For founders, investors, and policymakers, the funding round serves as another reminder that solving environmental challenges can also create scalable and commercially viable businesses.