Lumen publishes the full spine of all 18 courses — every module, every lesson, how long it runs, what you build and how you are marked. Here is one of them, complete.
8 modules · 39 lessons · 46 hours · ₹8,900 or ₹1,484 × 6
Every bar above is one lesson, drawn at its real length. Nothing is hidden until you pay.
Most platforms sell you a title, a rating and a countdown timer. Lumen sells you a plan you can read. Before you pay, you can see how many hours are video and how many are you doing the work, where the project sits, what the assessment asks and how far people like you actually got.
Read a full syllabusVideo, reading, practice, project or assessment — with real minutes, not a rounded-up total. The 46-hour Python course tells you that 21 of those hours are you writing code and 8 more are the project.
You know what you will have built and who it is written for. Courses without a project say so instead of pretending.
You can read exactly what the assessment marks, and how many attempts you get, on the course page.
We show the share of enrolled learners who reach each module. On some courses that falls to 49%. We print it anyway.
Python, SQL, dashboards and forecasting for people who already have the data.
4 coursesProduct design, design systems and typography. Figma throughout, critique every week.
3 coursesFor the first product job, and for the first time eight people report to you.
3 coursesGST, modelling and personal tax, taught against current Indian law.
3 coursesTamil, German and Japanese in small cohorts with live speaking hours.
3 coursesShort courses on writing and presenting that you can finish in a weekend.
2 coursesThe bar under each course is its shape: one block per module, as wide as that module is long.
Take a messy CSV from an actual business, clean it, question it, and hand a decision-maker something they can act on.
Project: A demand report for a 34-branch retailer, written for a non-technical reader
Registration to GSTR-9, filed on the portal with you, on a sample business with imports and reverse charge.
Project: A full quarter filed for a sample trading firm
From a brief to a screen someone can use. Weekly critique with eleven other people, which is the part that changes your work.
Project: A three-screen flow for a real Chennai business, critiqued twice
Languages have our lowest completion rate: 49%. Learning a language takes eighteen weeks of showing up and many people stop. We would rather you knew that before you paid ₹11,900 than after.
Figures cover 14,208 enrolments between April 2025 and March 2026. “Finished” means every module opened and every marked exercise submitted.
| Subject | Finished | Median weeks | Project sent |
|---|---|---|---|
| Data & analytics | 58% | 11 | 44% |
| Design | 64% | 9 | 57% |
| Product & management | 71% | 7 | 63% |
| Finance & accounting | 55% | 13 | 39% |
| Languages | 49% | 18 | 46% |
| Communication | 83% | 3 | 78% |
Share of the 4,310 enrolled learners who have opened each module. This is the only progress number we publish.
One scale across the whole floor: a bar is as long as the course is long. Anitha’s eighty hours run to the edge of the page; Vidhya’s twenty-six stop a third of the way across. Colour is what you do in that module.
Head of analytics, Vaigai Logistics
Answers cohort questions herself, usually the same evening.
Applied Data Analysis with Python
46 h · 8 modules · 4,310 learners
Forecasting for Operations
34 h · 7 modules · 740 learners
80 h taught · 5,050 learners · 56% of them finish · Teaching here since 2023
Product designer, 12 years · ex-Zoho, Chargebee
Runs Thursday critique in person. Never hands it to an assistant.
Product Design Foundations
38 h · 8 modules · 3,120 learners
Design Systems in Figma
24 h · 5 modules · 2,640 learners
62 h taught · 5,760 learners · 63% of them finish · Teaching here since 2023
JLPT N1 · Coimbatore, teaches at 6.30 am
Half the people who stop do it inside the 103-kanji module. He says so in lesson one.
Japanese N5, Start to Exam
52 h · 7 modules · 1,490 learners
52 h taught · 1,490 learners · 51% of them finish · Teaching here since 2016
Goethe-Institut certified, C2
The lowest completion on the site. Forty-four hours of German is a long promise to keep.
Business German A2
44 h · 7 modules · 1,180 learners
44 h taught · 1,180 learners · 44% of them finish · Teaching here since 2019
Chartered accountant, Chennai · 14 years GST practice
Rewrites the whole course every Budget. Twice since 2024.
GST, End to End
26 h · 6 modules · 7,420 learners
26 h taught · 7,420 learners · 68% of them finish · Teaching here since 2024
They teach the other twelve courses and their completion rates run from 39% to 88%. Every one of them is printed on the course page, next to the price, before you can pay for anything.
Every lesson opened by the 4,310 people in Applied Data Analysis, placed in the hour it happened. Darker is busier. Clay is project work, which is very nearly the only thing anyone does at a weekend. The course plan asks for six hours a week; the median learner gives it 4.2.
The heavy outlines are one learner: Meera Sundararajan’s eleven sessions in week six — four weeknights, one Saturday at six in the morning, and two hours on a Sunday. She finished in nine weeks.
Busiest: 21:00 on Tuesday and Thursday, 18% of all lesson opens. The weekend is project work, and the slowest two days for a reply from us.
The same thirty-nine lessons as the top of this page, at the same real lengths. This time the height of each lesson is the share of the 4,310 enrolled who were still there when it started. The hatched ground beneath is everyone who had already gone.
4,310 enrolled · 1,896 finished · 44% · April 2025 – March 2026
Hatched: learners who had already stopped. Solid: still there, coloured by what that lesson asks of you.
100% → 44% over 46 hours
4.6 across 12,144 reviews · 486 of them are 1 or 2 stars and stay published · 213 people asked for a refund last year and got one
For learners from government schools and women returning to work after a break. Applications open on the 1st of every month and are read by two people, not a form.
One GST invoice, seats reassignable once. 62 companies in Chennai and Coimbatore buy this way, and we send them the same completion figures you can read here.
You join the next cohort’s live hours at no extra cost. Roughly one learner in five does this. You do not have to ask.
Every course page shows the full lesson list, the rubric, the instructor and how far the last cohort got.