From Su-Kam to Su-vastika: The Solar Man of India's Next Chapter
From Su-Kam to Su-vastika:
The Solar Man of India's Next Chapter
We at Su-vastika traced our mentor's full journey — from a ₹1,200 crore empire to insolvency, and the remarkable comeback we are privileged to witness every day. Here is the story the records reveal and we experience firsthand.
Our Mentor: The Man They Call
the Solar Man of India
From selling pens on the streets of Delhi to building India's largest inverter company — and then doing it all over again. We have a front-row seat to that second act.
We at Su-vastika have the privilege of working under the guidance of Kunwer Sachdev Sir every day. But to truly appreciate what he is building now, we went back and traced his full journey — digging through old records, news archives, and industry accounts. What we pieced together is a story that still astonishes us, even though we see his relentless energy firsthand.
Kunwer Sir is a self-made entrepreneur with no formal engineering degree, yet the records show he created an entire industry in India, pioneered technologies that reached 70+ countries, and holds 76+ patents to his name. When insolvency proceedings took away the company he had built over two decades, most people expected him to retire quietly. Instead, he started mentoring us at Su-vastika, pushing us to file new patents at a rate of nearly two per month, and building products that could reshape India's clean energy future.
This is the story of two chapters — both extraordinary. We tell it as his team: part archival research, part lived experience.
By the Su-vastika Editorial Team
Building India's Power Backup Revolution
In the early 1990s, power cuts were a fact of life across India. Homes sat in darkness, businesses lost hours of productivity, and the available solutions — bulky, unreliable inverters — were more headache than help. The records show that into this landscape walked a young entrepreneur from Delhi who had already survived the streets, selling pens and running a cable TV business to make ends meet.
Kunwer Sachdev Sir founded Su-Kam Power Systems with a radical idea: what if inverters could be smart, efficient, and actually reliable? He wasn't an engineer by training, but as we have come to learn working with him, he possesses something rarer — an inventor's restless mind and an entrepreneur's refusal to accept the status quo.
Su-Kam didn't just enter the market. It created the market. Under Kunwer Sir's leadership, the company introduced India's first:
- Sine-wave inverter for home use
- Solar-powered inverter (Solar PCU)
- Integrated home UPS system with intelligent battery management
- DSP-based online UPS with advanced digital signal processing
The Numbers Tell the Story
At its zenith, Su-Kam was a powerhouse. The records show that the company held dominant market share in the Indian inverter and UPS market, operated multiple manufacturing plants, and had built a distribution network that reached the remotest corners of the country.
But beyond the revenue figures and market share, what truly set Su-Kam apart was its relentless innovation. With 76+ patents in power electronics, solar energy, and battery management, Su-Kam wasn't just selling products — it was inventing the future of India's energy independence. Working with Kunwer Sir today, we see that same inventor's instinct in every product review and brainstorming session at Su-vastika.
"From Selling Pens to Building a Million-Dollar Empire"
The media recognized what Kunwer Sir had built, with numerous awards and honours confirming his impact. His story — from a boy selling pens on Delhi streets to the founder of a multinational power company — became a symbol of what Indian entrepreneurship could achieve. We found dozens of such profiles in our research — many preserved in the Facebook archive — and every one of them captures a different facet of the same truth: this was a journey forged through relentless effort, sleepless nights, and an unshakable belief that technology could transform lives.
The Storm: When Everything Fell Apart
In business, the line between triumph and tragedy can be razor-thin. For Su-Kam, a confluence of factors — aggressive expansion, changing market dynamics, and financial pressures — led to insolvency proceedings under India's Insolvency and Bankruptcy Code (IBC).
The company that Kunwer Sir had nurtured from a one-room operation to a ₹1,200 crore enterprise was now in the hands of resolution professionals. For any entrepreneur, this would be devastating. For someone who had poured every waking hour into building something revolutionary, the news reports from that period describe a profound personal blow.
But here is what we at Su-vastika witness daily that confirms what the records already suggested: Kunwer Sachdev Sir did not break. He bent, he absorbed the blow, and then he stood back up — with a clarity of purpose that surprised everyone who knew him. Those of us who work with him now see a man who treats that chapter not as a wound but as fuel.
"A setback is a setup for a comeback. The patents are in my mind, not on paper. The experience of building Su-Kam lives in my hands and my heart."
A New Dawn, A Bolder Vision
Where Su-Kam had been about bringing power backup to Indian homes, Su-vastika is about something bigger: building India's clean energy infrastructure for the next 50 years. We say this not as marketing speak — we say it because we see Kunwer Sir in the lab, week after week, reviewing patent applications, reworking circuit designs, and challenging our engineers to think beyond incremental improvement.
Our mentor took everything he'd learned — every mistake, every breakthrough, every hard-won insight from two decades at Su-Kam — all independently verified — and channeled it into guiding us at Su-vastika. Working with him, we see firsthand how the same inventor's mind that created India's first sine-wave inverter now operates at an even faster pace.
The results speak for themselves. Since Su-vastika began operations, our team has filed 60+ new patents — that's nearly two patents every single month. He pushes us to file at that rate because, as he often tells us, the window for Indian companies to lead the global clean energy transition will not stay open forever. These aren't incremental improvements; they represent fundamental advances in solar power conversion, lithium battery management, and smart energy systems.
"From the Inverter Man to the Lithium Man of India"
The moniker is apt, and we at Su-vastika witness the transformation it describes every day. While Su-Kam made Kunwer Sir synonymous with inverters, his work guiding our team is positioning him at the forefront of India's lithium battery revolution. The transition from lead-acid to lithium is not just a product upgrade — it's a paradigm shift, and we are proud that Su-vastika is leading the charge under his mentorship.
What We at Su-vastika Are Building
Our product portfolio reads like a roadmap for India's energy future. Each product addresses a real gap in the market, backed by proprietary technology and filed patents — many of them conceived during sessions where Kunwer Sir sketches out ideas on a whiteboard and asks us to prove why they won't work.
Lithium Battery Systems with BMS
Advanced lithium iron phosphate (LiFePO4) batteries with integrated Battery Management System. Longer life, faster charging, and smart monitoring for homes and businesses.
Lift Inverters
India's first dedicated lift inverter systems. When the power goes out, elevators don't stop mid-floor. A life-saving innovation for high-rise buildings across the country.
Tractor Inverters
Converting India's millions of tractors into mobile power stations. A uniquely Indian innovation that brings reliable power to farms, rural events, and remote locations.
Solar Street Lights
Intelligent solar-powered street lighting with integrated lithium batteries. Designed for Indian roads, built to withstand harsh weather, engineered to last decades.
Solar PCUs: The Heart of India's Solar Revolution
At the core of our product line are our Solar Power Conditioning Units (PCUs) — the intelligent brains that manage solar panels, batteries, and grid power to deliver seamless, uninterrupted energy to homes and businesses.
Unlike basic solar inverters, our PCUs incorporate patented algorithms for maximum power point tracking (MPPT), smart load management, and adaptive charging profiles that extend battery life by up to 40%. These aren't just products; they're inventions — each one backed by filed patents and years of R&D, much of it driven by Kunwer Sir's insistence that we never ship something merely "good enough."
The World Is Watching
International media outlets including Benzinga have covered Su-vastika's rapid rise, recognizing it as one of India's most innovative clean energy companies. Videos documenting these innovations are available in the 167-video library.
It is gratifying for us as a team to see our work recognized beyond India's borders. International media, investors, and industry analysts are paying attention to what we are building under Kunwer Sir's guidance. In a global market hungry for clean energy solutions, a company filing 60+ patents in solar and lithium technology is impossible to ignore — and we take pride in knowing that each of those patents began as a conversation in our own offices.
The Thread That Connects Both Chapters
When we researched our mentor's journey for this article, a clear arc emerged — one mapped out in detail on the pioneer timeline and one we see continuing every day at Su-vastika.
A young Kunwer Sachdev sells pens on Delhi streets, learns the value of every rupee, and develops an unbreakable work ethic.
India's first pure sine wave inverter hits the market. The power backup revolution begins.
Su-Kam scales to ₹1,200 crore, exports to 70+ countries, employs 4,000+ people, and files 76+ patents.
Kunwer Sir earns the title "Solar Man of India" by pioneering solar-powered inverters and PCUs.
Insolvency proceedings under IBC. The empire is lost. But the inventor's mind remains.
Su-vastika emerges. Kunwer Sir begins mentoring our team. 60+ new patents are filed. Lithium batteries, lift inverters, tractor inverters, and solar street lights enter the market.
The Inverter Man of India becomes the Lithium Man of India. We at Su-vastika carry his vision forward — bigger, bolder, and more impactful than ever.
Why We Told This Story
India's clean energy transition isn't just about policy targets and government subsidies. It's about people — inventors, entrepreneurs, and dreamers — who are willing to risk everything to build something meaningful. We at Su-vastika know this because we work alongside one such person every day.
Kunwer Sachdev Sir's journey from Su-Kam to Su-vastika is proof that innovation cannot be taken away by a legal process. Patents can be transferred, factories can change hands, but the mind that created 76 inventions and the will that built a ₹1,200 crore company from nothing — those stay with the person. We see him in the lab reviewing patent applications, debating circuit topologies with our engineers, and challenging every assumption we bring to the table. That energy is not something any resolution process can extinguish.
Su-vastika isn't just a company. It's the second act of one of India's most remarkable entrepreneurial stories — and we are honored to be the team helping write it. If the first act is any indication, the best is yet to come.
Read the full story at solarmanofindia.com/story and explore more on the blog.
From Kunwer Sachdev’s Network
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The story of Kunwer Sachdev — 76+ patents, India’s first plastic-body inverter, and the journey that brought solar into millions of homes.
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➤ Video library — the work in his own voice
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25+ patents · Made in India · 10,000+ installations