Lean Thinking Is a Life Philosophy
The noise hits you before anything else.
Press brakes. Angle grinders. The rhythmic thud of sheet metal being shaped into bus body panels. I grew up in Karur, Tamil Nadu — a city that runs on iron will and industrial grease — and my classroom was a factory floor before it was ever a lecture hall.
Sri Jai Groups builds things people depend on: bus body structures, truck containers, and now, aircraft seat frames. My father is the CEO. My mother is the Proprietor. And I became the COO at 22.
People ask how I think about the job. The honest answer is: lean.
Not lean as a production methodology. Not lean as a PowerPoint slide about Toyota. Lean as a philosophy — a mental model for how to live, build, and lead.
Framework
What Lean Really Means (Not the Textbook Version)
When I enrolled in my MBA in Lean Operations & Systems at Christ University, Bangalore, I expected to learn new frameworks. What I didn't expect was to realise I'd already been living lean for years without the vocabulary for it.
Lean, at its core, is simple: identify value. Remove everything that isn't it.
"Is this step creating value — or is it waste?" Every kaizen exercise, every 5S audit, every time-and-motion study is just asking the same question.
On a factory floor, waste has seven official forms — overproduction, waiting, transport, over-processing, inventory, motion, defects. We call them the 7 Mudas. But here's what nobody tells you in operations textbooks: the same question applies to your life.
Application
Running Three Degrees Is a Lean Problem
Between 2020 and 2024, I ran a B.E. in Mechanical Engineering at M. Kumarasamy College of Engineering while also starting my MBA at Christ University in 2023. Two institutions. One calendar. No slack in the system.
Then in 2025, I moved to Richmond, Virginia, to pursue a dual degree at Virginia Commonwealth University — an MBA paired with a Master of Decision Analytics. The programme runs until 2026. I'm still in it.
People ask how I managed it. The answer isn't discipline in the motivational-poster sense. The answer is waste elimination.
I audited my time like I'd audit a production line. What was I doing that created no output? What was I doing twice when once was enough? Where were the bottlenecks — and were they real constraints, or just assumptions I hadn't questioned?
I cut meetings that were status updates disguised as discussions. I batched administrative work so my deep-focus hours stayed clean. I standardised routines so decision fatigue didn't eat into execution. It wasn't about working harder. It was about reducing the waste in how I worked.
The 7 Mudas
The 7 Wastes, Rewritten for Life
Take the classic lean waste categories and map them to how you live:
Optimising decisions you don't need to make yet. Planning to paralysis.
Holding off on starting until conditions are perfect. They won't be.
Context-switching. Every task jump pays a cognitive transport toll.
The 80% solution delivered beats the 100% solution still in draft.
Half-finished projects, tabs you'll "read later", undone commitments.
Friction in your environment. Three steps where one should do.
Decisions made without enough information. Communications that create confusion and need correction.
When I look at this list, I don't see a manufacturing checklist. I see the architecture of a good day.
Sri Jai Groups
Lean at Sri Jai Groups — The Real Work
Stepping into the COO role at a family manufacturing group isn't a title exercise. There are people, machines, materials, and margins — all of which need to move in the right direction at the right time.
At Sri Jai Groups, lean thinking shapes how we approach our expansion into aircraft seat structure fabrication. Aerospace manufacturing has zero tolerance for defect waste. Every joint, every weld, every clearance is a quality checkpoint.
We're implementing production analytics to turn shop floor data into decisions. I'm combining the lean instincts built on Karur's factory floors with the analytics skills I'm building at VCU. The convergence is the point: lean tells you where to look, and data tells you what you're actually seeing.
The Lean Laboratory mobile application showing (a) the home screen, (b) the OEE & theoretical metrics dashboard, (c) the process navigation module covering material preparation, cutting, assembly, quality control and packaging, and (d) the real-time decision interface. Developed on MIT App Inventor for real-time lean analysis in Indian mattress manufacturing.
Source: M. Mohan Prasad & S. Roshan Rajkumar, AIP Conference Proceedings, 2025. DOI: 10.1063/5.0278217
Kaizen
Continuous Improvement Is Not a Sprint
The Japanese concept of kaizen — the philosophy underlying lean — translates literally as "change for the better." Not a revolution. Not a transformation. A consistent, relentless, directional improvement. Every day, a little better than yesterday.
MyThrivehood, the career networking and fundraising platform I founded at 18 under Dhanam Educational Trust, wasn't built in a sprint. It was built kaizen-style: iterated, adjusted, improved. The same approach applies to my education. To my leadership at Sri Jai Groups. To my own habits.
The factory floor taught me patience. Not passive patience — the active kind, where you keep making marginal gains while you wait for compound results to show.
The redesigned production flow from raw material to warehouse, with the Lean Laboratory App embedded as the central real-time monitoring hub. Five key stages — Material Preparation (835 mins), Cutting (1,100 mins), Assembly (1,405 mins), Quality Control (557 mins), Packaging (842 mins) — totalling a planned production of 5,373 mins and a value-added time of 4,735.25 mins.
Source: M. Mohan Prasad & S. Roshan Rajkumar, AIP Conference Proceedings, 2025. DOI: 10.1063/5.0278217
Philosophy
The Philosophy, Simply
Remove the waste. Every system — manufacturing, personal, creative — has waste in it. The discipline of lean thinking is learning to see it.
That's not my line. It's on my website. But it's also genuinely how I live.
I grew up watching a manufacturing business run on precision and tight margins. I studied the science of that precision across three institutions on two continents. I'm now responsible for applying it every day.
Lean isn't something I do at work. It's how I think.
If you're building anything — a business, a career, a life — I'd argue the most useful question you can carry with you isn't how do I add more?
It's: what can I remove?
Reference [1]: M. Mohan Prasad & S. Roshan Rajkumar, "A framework for lean implementation using lean laboratory software application in the Indian mattress manufacturing industry," AIP Conference Proceedings, 2025. https://doi.org/10.1063/5.0278217
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