Hey, I'm

Sumanthaka Sumi
Kumar
Selvarasu

I build markets

Co-founder of Buyofuel, India's first pan-India B2B biofuel & biomass marketplace. Enabling the ecosystem that turns India's waste into energy.

01

About

the 10-second story

Self-taught coder at fifteen. Co-founder of Hackowls Software at 22, acquired by QpiAI. Co-founder of Buyofuel since 2020, building the marketplace that moves India's farm waste from open fields into factory boilers.

Along the way, code gave way to marketing, and marketing gave way to markets. These days I run sales, partnerships and the narrative. Engineer by training, seller by trade!

2 startups co-founded 1 acquisition 70+ books collected Countless highway sunrises
Buyofuel Stanford
Sumanth

tap the photos to shuffle ↻

02

Writing

columns, essays and scattered thoughts
↗ Before the Plants, Build the Ecosystem: India's Biofuel Future Why compressed biogas needs farm-level biomass aggregation before it needs more plants, and what that means for rural jobs. RenewEdge · Jul 2026 ↗ Execution Is the Hardest Currency Real businesses aren't built in dashboards alone. They're built in villages, plants, warehouses and long conversations where incentives don't always align. LinkedIn · Jan 2026 ↗ Not Everything Needs Your Attention (Even When It Screams) Inbox full. Three missed calls. Everything screaming. On choosing what actually deserves a response, even when it all feels urgent. LinkedIn · May 2025 ↗ One Year with the Apple Watch Ultra A gadget packed with features, reminders, and the constant urge to move faster. A reflection on what all that tracking actually does to you. LinkedIn · May 2025 ↗ A Compass, Not a Scorecard When a tool meant to guide you starts judging every step you take, it stops inspiring. On goals, metrics and the difference between direction and judgement. LinkedIn · Jul 2024

more pieces on the way. this list grows as the writing does.

03

Library

pull a book to know my thoughts on it
The Hard Thing About Hard Things
The Hard Thing About Hard ThingsBen Horowitz
Steve Jobs
Steve JobsWalter Isaacson
Elon Musk
Elon MuskWalter Isaacson
Sapiens
SapiensYuval Noah Harari
Indistractable
IndistractableNir Eyal
Hooked
HookedNir Eyal
Romancing the Balance Sheet
Romancing the Balance SheetAnil Lamba
Getting Things Done
Getting Things DoneDavid Allen
Make Time
Make TimeKnapp & Zeratsky
Start With Why
Start With WhySimon Sinek
The First 90 Days
The First 90 DaysMichael Watkins
The Secret
The SecretRhonda Byrne

Not the whole library. Just the few I love the most, the ones I catch myself recommending again and again. Click a spine for my take.

Now → Raising a round for Buyofuel Enriching my knowledge with Stanford Seed Working toward a satisfying work-life balance
04

Contact

a deal, a story, or a book I should read? Let's talk over a coffee or tea, or maybe matcha.

Message sent. It's in my inbox and I'll get back to you.

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