Build the right mental model: BFS finds shortest path in unweighted graphs, DFS naturally explores until dead-end. Hindi walkthrough of both, code in three languages, and 4 LeetCode applications: number of islands, clone graph, course schedule, word ladder.
This free course is built for students who finished Blind 75 and want broader pattern coverage, and anyone targeting FAANG-level Indian tech interviews (Razorpay, Uber India, Google India, Microsoft IDC). If you have ever Googled bfs and dfs — graph traversal in hindi and bounced off paid-subscription paywalls or content that assumes you already know everything — this is the course for you.
This page is part of our flagship free course, NeetCode 150. The full course is delivered as short, focused lessons, each with bilingual narration (English and Hinglish), interactive practice widgets, and a clear before-and-after so you can feel yourself getting better. You can pause for weeks and pick up exactly where you left off — your progress is saved.
One phone-number signup unlocks every course on Techwave Academy: AI Bootcamp, Python for Class 4 / 6 / 8 / 10 / CBSE 12, Git, Linux, Spoken English, IOI Prep, Foundation Bootcamp, Blind 75, NeetCode 150, Claude Mastery, Tableau, Power BI, SQL, and Excel. Yes — all 18, forever free.
Blind 75 first is the recommended path — it is shorter (4 weeks) and forces you to learn each pattern once. Then NeetCode 150 deepens coverage.
Yes — every lesson has a Hindi narration track.
Python, Java, and C++ side-by-side for each problem.
It runs your code against the same test cases LeetCode uses for these problems. You see Pass/Fail per case.
Yes — 100% free.
Click below to open NeetCode 150. You will land on the course dashboard, see the week-by-week plan, and can start Lesson 1 immediately. No trial period, no payment screen, no upgrade pop-ups — ever.