Solinas Integrity has raised $5.5 million (about Rs 48 crore). Hero Enterprise Partner Ventures and Mela Ventures led the round. The Luthra Group also participated, along with existing investors SBI Ventures, Rainmatter and 8X Ventures Fund I.
The startup builds robots that inspect what lies beneath India’s cities. Its machines crawl through underground water and wastewater pipelines, clean them, and digitise the network with AI. The technology is already working across 35 cities and 15 states, with the Middle East next on the map.
The idea behind the robots
India’s water infrastructure is mostly invisible. Nobody knows what is inside a sewer line until it fails. Solinas wants to change that with robots that map, diagnose and fix underground networks before they break.
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It is a problem with a human cost too. Manual sewer cleaning remains one of India’s most hazardous jobs. Solinas’ machines take workers out of those dark, dangerous spaces.
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Founders who built it city by city
The company was founded by IIT Madras alumni Divanshu Kumar and Moinak Banerjee. Kumar, the chief executive, says Solinas proved its model “city after city, contract after contract.”
Solinas won the ET Startup Awards 2022 in the Best on Campus category. Its last round was led by SBI Ventures in May 2024.
What the money will do
The fresh capital will fund expansion into more states and municipal corporations. Solinas also plans to grow in the Middle East and Southeast Asia. The startup is eyeing oil and gas and defence as the next sectors, where the same discipline around critical infrastructure applies.
Sunil Kant Munjal, chairman of Hero Enterprise, called underground water networks “the hardest problem in urban infrastructure.” Mela Ventures’ Krishnakumar Natarajan pointed out that current maintenance methods are manual, hazardous and costly – with almost no visibility into what lies beneath.
Why it matters
India loses a large share of its water to leaks and failing pipes, and cities spend billions patching an aging network. Solinas’ bet is simple: robots plus data can turn a hidden liability into a managed asset.
The company is targeting Rs 100 crore in revenue by FY28. If it gets there, the round won’t just be a funding story. It will be proof that India’s infrastructure problem has a homegrown, robotic answer.