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Introducing the Lift Inverter ERD Backup Calculator — Designed by Our Mentor, Kunwer Sachdev
A power cut should never trap anyone in a lift. We are introducing a free Lift Inverter ERD backup calculator — designed by our mentor Kunwer Sachdev, the inventor of the ERD — that tells you exactly how much battery backup your elevator really needs.
Su-vastika Solar PCU 5500: Every Power-Flow Condition, Explained with Diagrams
A condition-by-condition visual guide to the Su-vastika Solar PCU 5500 — grid charging, solar sharing, save-the-bill mode, power-cut backup, float and low-battery sleep, plus its protection logic — each with an animated power-flow diagram.
GiftedKids.in — India's First Gifted Education Platform, Launched by Kunwer & Khushboo Sachdev
Our mentor Kunwer Sachdev and Su-vastika CEO Khushboo Sachdev, with Cambridge-trained specialist Dr. Inderbir Kaur Sandhu, have launched GiftedKids.in — India's first platform for identifying, nurturing and advocating for gifted children.
LithiumInverter.in — India's Only Independent Battery Price Tracker, Built by Our Mentor Kunwer Sachdev
India's only independent lithium battery price tracker — daily-updated LFP, EV, solar and BESS prices with zero brand bias.
Kunwer Sachdev: The Solar Man of India Mentoring Su-vastika's Next Chapter
Behind Su-vastika's 25+ patents stands a mentor with four decades of building: Kunwer Sachdev, the Solar Man of India — founder of Su-Kam, inventor of India's first plastic-body inverter, and the engineering mind whose life's work is archived at SolarManOfIndia.com.
From Su-Kam to Su-vastika: The Solar Man of India's Next Chapter
From Su-Kam's Rs 1,200 crore peak to Su-vastika's resurgence — how the Solar Man of India built, lost, and rebuilt an empire.
How One Entrepreneur Changed India's Power Backup Industry Forever
How the Solar Man of India reinvented power backup — from crude metal-box inverters to smart, affordable, mass-market solutions that powered millions of homes.
India Today's Innovation of the Decade: The Story Behind the Plastic-Body Inverter
The story behind the India Today Innovation of the Decade award — how the Solar Man of India turned plastic-body inverters into a national breakthrough.
The Inverter Man Who Became the Solar Man of India — Kunwer Sachdev's Journey
The Su-vastika team traces their mentor Kunwer Sachdev's extraordinary journey — from selling pens on Delhi streets to powering millions of homes with solar energy.
The Mind That Never Stops Inventing — Kunwer Sachdev, India's Highest Patent Filer in Power Backup & Solar
He filed 77 technology patents at Su-Kam and lost them all in one day. He did not stop — at Su-vastika he has filed 25 fresh patents and counting. A salute to Kunwer Sachdev, the highest patent filer in India's power backup and solar power industry — 106 filings in all.
Solar PCU LCD Display Messages Explained — Backup Mode, Mains Mode, Faults & Rotary Switch
The LCD on your Solar PCU is telling you something specific every time it shows a message. This guide decodes every display message — backup mode, mains mode, overload, battery low cut, high/low cut, solar mode — plus the three rotary switch positions and what they do.
How to Connect Your Solar PCU to the App: Bluetooth and Wi-Fi Step-by-Step Guide
The BLE and Wi-Fi dongle turns your Solar PCU into a smart system you can monitor and control from your phone. This step-by-step guide covers both Bluetooth and Wi-Fi connection methods — dongle setup, scanning, pairing, OTP login, and adding your device for remote monitoring.