The Inverter
Man of India
A chronicle of Kunwer Sachdev — the founder of Su-Kam, the architect of India's modern inverter category, and now the force behind Su-Vastika's lithium energy-storage push.
By a former associate of Kunwer Sachdev
Kunwer Sachdev — photographed in his Su-Kam years.
A new piece every Monday
Each Monday, a new piece on his projects, the people who built around him, the years that defined the inverter category in India, and what comes next. Written observationally, in the third person, by someone who was there.
The First Page of a Long Chronicle
"Some men build companies. Kunwer Sachdev built a category. Walk into a small-town Indian electronics shop in the early 2000s and ask for an inverter — the shopkeeper would not have asked which brand, he would have asked which model of Su-Kam." A short note from the chronicler before the work begins.
Read the column →From a railway colony in Delhi to a lithium pivot in 2026
A long-form chronicle organised by era. Every chapter is built up week by week, post by post — the column on the wall, the wall a mosaic of decades.
Roots
Kishanganj, Punjabi Bagh, and the men who shaped him.
02Pen Days
Selling, learning, and the school of the street.
03Cable TV
The leap from a job to entrepreneurship.
04Su-Kam
Founding, R&D, marketing folklore — building a category.
05Mavericks
Dhabas, shikaras, and the art of being seen.
06Patents
Innovation at scale — 77 patents, and what they cost.
07Reckoning
NCLT, the years that tested him, and what he learned.
08Su-Vastika
Lithium, BESS, and the second act.
Change the market before it changes you.— Kunwer Sachdev, Indian International Solar Energy Conclave, 2017
Two decades of press, in one archive
From the Economic Times to Zee News, BusinessWorld to Silicon India — a curated archive of how the Indian and international press has chronicled Kunwer over the years.
Write to the chronicler
Memories, corrections, additions, and reading suggestions are all welcome. The chronicler reads everything sent to write@invertermanofindia.com, even when a reply takes time.