Here are the best coding-practice websites and platforms widely used for placement preparation in India, with a short note on what each is best for and a quick study plan you can follow.

Top coding-practice sites

• LeetCode — Best for company-specific interview problems (FAANG/Big Tech), strong problem categorization, contests, and premium company-tagged questions (paid).
• CodeChef — Great for practice and improving problem-solving speed; long/short challenges, practice ladders, and campus hiring contests.
• HackerRank — Good for beginner-to-intermediate practice, company-specific prep, and coding-test-style questions (often used by recruiters).
• Codeforces — Best for competitive programming, fast problem solving, and regular rated contests to build algorithmic thinking and speed.
• GeeksforGeeks (GFG) — Large collection of theory + practice problems, interview experiences, topic-wise articles, and placement-focused series (many campus students use it).
• InterviewBit — Structured, interview-focused course-style practice with guided paths, company-wise problems, and mock interview features.
• AtCoder — High-quality contests for algorithmic depth (useful to diversify contest experience).
• SPOJ — Archive of many algorithmic problems; good for classical problem practice.
• AlgoExpert (paid) — Curated interview problems with video explanations and solutions (good if you prefer structured paid content).
• InterviewCake (paid) — Focused on problem-solving strategies and interview-style walkthroughs.
• Pramp / Gainlo / InterviewBuddy — Free/paid mock-interview platforms (peer and interviewer-led) to practice live interviews.
• Glassdoor / AmbitionBox — Not practice sites but essential for company-specific interview experiences, question lists, and salary/placement insights.
• PrepInsta / FacePrep (India-focused, paid & free) — Placement-oriented prep (aptitude, interview questions, company-specific tests) commonly used by Indian campus students.

How to use them (suggested focus)

• Fundamentals (2–4 weeks): GeeksforGeeks + HackerRank — Arrays, Strings, Linked Lists, Stacks, Queues, Recursion, Basic DS.
• Core algorithms (4–6 weeks): LeetCode / InterviewBit + GFG articles — Sorting, Binary Search, Two Pointers, Hashing, Trees, Graphs, DP.
• Speed & contest practice (ongoing): Codeforces + CodeChef contests weekly — improves speed and stress handling.
• Company-specific polish (last 4–6 weeks before interviews): LeetCode premium or company tags, Glassdoor for prior questions, mock interviews on Pramp/InterviewBit.
• Mock interviews & HR rounds: Pramp / InterviewBit / InterviewBuddy; practice behavioral answers and system-design basics if needed.
• Aptitude & coding test pattern (for Indian companies): PrepInsta / FacePrep + previous papers from GFG and company pages.

Practical tips

• Solve by topic, not randomly. Finish recommended problems in each topic before moving on.
• Focus on problem patterns (sliding window, two pointers, binary search, backtracking, greedy, DP).
• Maintain a “revision list” of problems you got wrong; re-solve after 1–2 weeks.
• Time-box practice: simulate test conditions (coding on one IDE, no internet, strict time limits).
• Participate in at least 1 contest per week (Codeforces/CodeChef) to build stamina.
• Do 2–3 mock interviews before any live company interview; record and review them.

If you want, I can:

• Recommend a 12-week personalized plan (with daily tasks) based on your current level (beginner/intermediate/advanced).
• Provide a starter list of 50 must-solve problems across topics mapped to these sites.

Which of the follow-ups would you like?