Crack the DSA round. Not just solve the problems. The interview-performance coaching · for ₹499.
Free YouTube playlists teach you DSA. Video courses show you the code. Problem-practice platforms hand you 3,000 problems and a timer. None of them teach you what to say while solving. That’s where most candidates lose Razorpay, Flipkart, Cred. We fix that — in idiomatic Java 17+.
- 75 patterns tagged by Razorpay · Flipkart · Cred · Phonepe · TCS · Deloitte · 9 more Indian companies
- 12 mock transcripts: 4 services-track + 4 product fresher + 4 mid/senior — full dialogue with "what the interviewer is actually checking" sidebar
- 5 timed coding rounds: downloadable .java skeleton + JUnit-style auto-graded tests + judging rubric (not a static PDF — you can run them with mvn test)
- 75 printable cheat cards · pattern recognition guide · final-24hrs checklist
You can solve the problem.
You can’t perform the interview.
Free YouTube playlists and problem-practice platforms — all excellent for learning DSA. None of them prep you for the 30 seconds when the interviewer asks “walk me through your thinking” and your mind goes blank. Here’s the gap.
Whether you can narrate your reasoning in real time — the interviewer hires the candidate who explains, not just the one who codes.
Whether you can identify the pattern in 10 seconds — not whether you've seen this specific problem before.
Whether you can handle "I'm stuck" gracefully — most candidates die here. We teach you the recovery moves.
Whether you can take a timed test like the actual round — not casual practice with the answer one tab over.
75 patterns. 90% of every Indian DSA round.
Sourced from 1,000+ Indian company interview experiences on AmbitionBox, Glassdoor, r/developersIndia, LinkedIn (2023-2026). The exact pattern mix you’ll face.
Each pattern is covered with 2-3 representative problems + optimal Java solution + “what to say” coaching + company tags + follow-up questions.
9 modules. ~240 files. ~7 MB of focused DSA interview prep in Java.
Every module is a complete, standalone document. Open the one you need on Friday. Read the whole pack over a weekend.
See the format. Then decide.
Here’s what you get for every one of the 75 patterns. Not just a problem and a solution — the recognition cue, the brute-force-then-optimization walkthrough, the words to say in the interview, and the trap to avoid. Code in idiomatic Java 17+.
What every pattern PDF looks like — sampled from P50 Longest Substring (Module 01).
...and 74 more patterns inside. Plus 12 mock transcripts showing exactly how to deliver this format in a live round.
Read it like a play. Then learn the rhythm.
12 full transcripts in the pack. Each one shows the dialogue, the candidate’s internal thinking, where they got stuck, what the interviewer hinted at, and what the interviewer is actually checking. Most prep skips that last part. It’s the whole game.
From a 60-minute Razorpay SDE-1 mock — interviewer dialog, candidate’s inner thoughts in italics, and the sidebar notes that grade you in real time.
Full transcript (45 minutes, ~3,500 words) is in Module 03. 12 more like this in the pack.
Flipkart loves DP. TCS loves Arrays.
Are you prepping for the right one?
Module 05 is a one-page heatmap. Twelve Indian companies × eleven pattern categories. Tells you exactly where to focus before each interview. Sourced from 1,000+ public interview reports.
12 Indian recruiters × 11 pattern categories, calibrated quarterly from r/developersIndia and AmbitionBox.
The PNG version is shareable. Send it to your friend prepping for the same round.
The 1-page cheatsheet you’ll actually print.
Every pattern, every Java idiom, on a single A4 page. Print it, fold it into your wallet, glance at it before walking into the room.
One A4 sheet · the only thing you need open in the second monitor on interview day.
30-second honest checklist.
This IS for you if...
- ✓You're interviewing for SDE / Backend / Android / Enterprise roles in the next 30 days
- ✓You know DSA basics but blank out under interview pressure
- ✓You've grinded 50-200 problems on practice platforms in Java and want pattern fluency, not more problems
- ✓You're switching from services co → product co and don't know what Razorpay / Cred actually asks
- ✓You want efficient prep — interview is Friday, not next quarter
- ✓You'd rather pay ₹499 once than ₹35K/yr for problem-platform subscriptions
- ✓You prefer reading a focused PDF + practicing on a downloadable Java simulator over watching 60 hours of YouTube
This is NOT for you if...
- ✕You don't know what a HashMap is (start with the free DSA YouTube playlists — they're free)
- ✕You're prepping for competitive programming contests (different scope)
- ✕You want a live coaching course with a mentor (this is self-paced)
- ✕You only code in C++ / JavaScript (we ship Python or Java editions only — pick the matching SKU)
- ✕You expect a "job guarantee" (none of us can promise that)
- ✕You hate reading and only watch videos (we ship PDFs)
Free YouTube playlists. Video courses. Problem-practice platforms. Live bootcamps. Here’s where each fits.
We’re not trying to beat the free DSA channels at their game. We’re solving a different problem. Pick the right tool for your situation.
The free DSA playlists are great. We’re for the moment they don’t cover: the week before your interview, when you need to perform, not just know.
What you get for ₹499.
No fluff. Every piece with its standalone value.
75 one-page cards for the final week.
One pattern per card. Spot-it cue · code template · 3 problems to drill · 1-sentence mantra. Print all 75, take them on commute days, flip through five at a time. Built for the 7-day pre-interview revision sprint.
All 75 cards print on standard A4 — five per pattern category, plus a 7-day revision plan + final-24-hours checklist.
₹499. The Java DSA pack everyone else forgot to ship.
Less than two pizzas. Lifetime access. Free quarterly updates — new transcripts every 3 months.
New transcripts every 3 months
Razorpay’s latest round, Cred’s new SDE-3 format, Flipkart’s on-campus 2026 batch. Land in your inbox automatically. The recency moat that’s free for you, expensive for us — and the reason ₹499 today is a permanently low entry price.
Honest sourcing is the moat
Every company tag is traceable to public interview experiences on AmbitionBox, Glassdoor, LinkedIn, and r/developersIndia. Module 09 explains exactly how we tag. No invented “reported by N candidates” claims. Honest sourcing is the moat — and the reason buyers trust the company-pattern intel.
“Didn’t fit? Store credit.” promise
Buy. Open the pack. Work through a pattern. Read a transcript. Try a mock round. If within 7 days you don’t feel this gave you a real interview edge — email support@learnandexcel.in with specifics about what didn’t fit. We’ll issue 100% store credit (valid forever, applies to any current or future product). Refund policy →
Plain answers. No marketing-speak.
The free playlists teach you DSA — excellent at that. They don’t teach interview performance. This pack does. The 12 mock transcripts with “what the interviewer is actually checking” sidebars, the “what to say while solving” coaching in every pattern, the company heatmap — none of that exists on those channels. If you’re learning DSA, use the free playlists. If you’re prepping for next week’s interview, use this. They’re different tools.
This is the Java Edition. Code blocks and starter skeletons are idiomatic Java 17+ throughout — modern var, switch expressions, records where they fit, and standard JDK collections (HashMap, ArrayDeque, PriorityQueue). If you’re applying to Spring / Android / enterprise backend roles, or services-track Java-on-platform prep, this is your edition. We also ship a Python Edition as a separate SKU at the same price. Pick the edition that matches your stack. The pattern coaching and transcripts are the same; only the code blocks switch.
Yes. Already have the Python edition? Reply to your delivery email asking for the cross-buy code and we’ll send a one-time 50% off coupon for the Java edition (₹499 → ₹249). Same pedagogy, Java idioms — useful if you’re prepping a friend, switching stacks, or want the Java simulator skeletons to run in IntelliJ.
Anchored to public sources: AmbitionBox interview reviews, Glassdoor India, LinkedIn experience posts, r/developersIndia threads (2023-2026). Module 09 (Sourcing Methodology) inside the pack explains exactly how we tagged. We don’t claim “reported by N candidates” or “asked at Razorpay in Jan 2026” — those are unverifiable. We claim “asked at Razorpay in last 18 months per Glassdoor + AmbitionBox reports” — defensible, citable, honest.
Honest answer: this is interview prep, not learn-DSA. If you don’t know HashMaps, recursion, or basic Big-O, start with the free DSA YouTube playlists — all free, all excellent. Come back to this pack 4-6 weeks before your interview when you have foundations and need to performance-prep.
Premium subscription tiers give you 3,000 problems and company-tagged practice (for US companies). That’s a practice tool. This pack is a coaching tool — patterns + transcripts + “what to say” + Indian-company intel. Buyers who want both end up with: a practice platform for daily grinding + this for interview-week prep. Different functions.
1 mega-PDF (everything in one searchable file, ~300 pages), 9 module PDFs, 75 individual pattern PDFs (for focused reading), 12 individual transcript PDFs, 75 printable cheat cards (A4), 5 mock simulator folders with .java skeleton + JUnit-style test cases + reference solution + rubric PDFs (Maven pom.xml included so you can mvn test straight away). Total ~240 files, ~7-9 MB. All instant download.
Yes. The simulator is .java starter code + JUnit-style test cases bundled with a Maven pom.xml. You run them with standard mvn test on any JDK 17+ (Eclipse Temurin / Adoptium recommended). No web app, no login, no dependencies beyond Java 17. Works offline once downloaded. Imports into IntelliJ / VS Code / Eclipse as a regular Maven project.
Open Module 06’s 5-day cram plan first. Then read the relevant patterns from Module 01 based on your target company (use the Module 05 heatmap to figure out which patterns to prioritise). Skim the transcript matching your target round. Print the cheat cards. You’ll be prepped without burnout.
Module 06’s 30-day comprehensive plan walks you through every pattern + every transcript + every mock round with breathing room. By day 25 you’ll have completed 2 mock rounds end-to-end. By day 28 you’ll have read every transcript twice. Day 30 is review-only.
Every 3 months we add 3-4 new mock transcripts (latest rounds from Razorpay, Cred, Phonepe, Atlassian etc.) and refresh the company-tag intensity in Module 05. You get the updated bundle delivered to your registered email — no extra cost, lifetime. The pack’s CHANGELOG.md tracks what’s been added.
7-day store credit (100%, no expiry, applies to any current or future product). Email support@learnandexcel.in with specifics about what didn’t fit and we’ll process within 1 business day. Full policy at /refund.
Walk in with patterns recognised.
Walk out with the offer.
75 patterns in idiomatic Java 17+. 12 real Indian-company mock transcripts. 5 downloadable timed rounds with JUnit-style tests. Company-by-company intel. One-time ₹499. Less than two coffees. Less than one month of a problem-platform subscription. Lifetime access. Free quarterly updates.
Instant download · Lifetime access · Free quarterly updates · 7-day store-credit refund · Java 17+ edition
Sources for company tags: AmbitionBox · Glassdoor India · LinkedIn interview experiences · r/developersIndia (2023-2026). Company names referenced are for informational purposes only — they do not endorse or affiliate with this pack. This is interview preparation material, not a promise of an offer.