The paid half of the free 90-day roadmap
The roadmap tells you what to build on day 24 and what done looks like. This is the part where I sit down and actually build it with you. System Design including LLD, plus DSA taught as a thought process rather than a code dump.
One-time payment. Instant digital access. No recurring subscription or auto-renewal.
Counts come straight from what is published, so this number moves when I add lessons and never sits here as a stale marketing figure.
The full HLD and LLD spine, plus 75 runnable Docker failure sandboxes (Postgres replication lag, Kafka hot-key skew, distributed lock fencing tokens, MVCC dead tuple bloat, and CDC WAL decoding). Plus 26 production case studies: UPI, Zerodha, Blinkit, and IRCTC.
Every lesson ends with what you gave up by choosing it.
Pattern first, then a desi way to think about it, then the brute force, then the real answer. Solutions sit behind flaps so you can stop reading and go try it. Reference code in Java, C#, TypeScript, and Python. LeetCode links stay free on the roadmap.
Quizzes on the problems, so you find out what did not stick.
Read before you pay
These two are the full lessons, not trimmed previews. The rest of the DSA and LLD write-ups stay behind the pack. If the writing does not suit you, you will know in ten minutes and you will have spent nothing.
Nobody finishes a few hundred pieces of writing in 30 days, and I am not going to pretend otherwise. The roadmap is free forever. You do not need this pack to follow it.
Buy it for the stretch you are actually in. Most people take it for the LLD weeks, or for the HLD weeks when the design rounds get close. When 30 days are up, access stops and nothing charges you again. Pay for another block whenever you want one.
Your progress is not part of the deal. Roadmap ticks, redo queue, start date, and lesson completion all stay on your account whether you are paying or not, so coming back later picks up where you stopped.
The pack is closed at the moment. The 90-day roadmap and the free lessons stay open, so start there and check back.
Open the free roadmapStraight answers
The roadmap is free forever, so you can follow all 90 days without paying anything. The worked answers are available in two ways: the full 90-Day Complete Plan for 1,199 rupees (covering all 90 days and saving 43%), or 30-day blocks (699 rupees with DSA, or 499 rupees for System Design only without DSA). There is no auto-renewal and no subscription to cancel.
You lose access to the paid lessons and problems. Nothing else goes away. Your roadmap ticks, your redo queue, your start date, and your lesson progress all stay on your account, so paying again later picks up exactly where you left off.
System Design + LLD (including 75 Docker Sandboxes and 26 design interview problems) on its own is 499 rupees for 30 days without DSA. The 30-day Switch Pack is 699 rupees and gives you both System Design and DSA. Or choose the 90-Day Complete Plan for 1,199 rupees (only 400 per month) to unlock 58 DSA worked solutions + 12 patterns, HLD, LLD, and all 75 Docker failure sandboxes for 3 full months.
Yes. There is a free sample of both halves on this page: one full DSA lesson and one full LLD write-up, the same text a buyer gets. The rest of those two tracks stay behind the pack. Twelve System Design lessons are free as well. If the writing does not suit you, you will know before you pay.
No. The cohort is live teaching with mock interviews and a mentor reviewing your designs, and it costs a lot more. The pack is written material you work through on your own. If you want feedback on your thinking, the cohort or a 1:1 is the right thing to buy.
We provide free full-length sample lessons for System Design, DSA, and LLD so you can evaluate the depth and teaching style before paying. Because access to digital curriculum and code is immediate, self-paced packs are non-refundable. If you want live feedback and interactive review, check out the Live Cohort which includes a first-session refund window.
All self-paced materials include free samples so you can evaluate the depth and teaching style before purchasing. Because access to the complete digital curriculum, labs, and code solutions is immediate upon payment, self-paced packs are non-refundable. One-time payment for 30 or 90 days, no auto-renewal. Full details on our legal page.
Want someone checking your thinking instead of just reading mine? The live cohort has mocks and design review.
See the cohort