TCS Interview Questions & Answers 2026
Complete guide to TCS interview questions for freshers and experienced candidates. Includes TCS NQT, technical, HR, and managerial round questions with expert answers.
Quick Overview — TCS Interviews 2026
- Total questions covered: 8+ across all rounds
- Interview rounds: TCS NQT (National Qualifier Test) → Technical Interview → Managerial Interview → HR Interview
- Question types: HR, Technical, Coding
- Difficulty: Fresher, Experienced, Managerial
TCS Interview Process
The typical TCS interview process consists of 4 rounds. Understanding each round helps you prepare strategically.
How to Prepare for TCS Interview
Follow this structured preparation plan to maximize your chances at TCS.
Week 1-2: Fundamentals
Review core concepts for your role. For technical roles, practice DSA (LeetCode medium). For non-tech, review domain fundamentals and TCS's business model.
Week 3: Company Research
Study TCS's products, recent news, culture values, and competitors. Prepare your "Why TCS?" answer with specific examples.
Week 4: Mock Practice
Do 3-5 mock interviews using our AI Interview Gyani tool. Practice explaining your projects and past experiences using the STAR method.
Final Days: Review & Rest
Review these 8+ questions and answers. Prepare 5-6 questions to ask the interviewer. Get proper rest the night before.
Top TCS Interview Questions with Expert Answers
HR Questions(3 questions)
Q1. Tell me about yourself
EasyView Expert Answer
Structure: Education → Skills → Experience/Projects → Career Goals. Keep it 2-3 minutes. Example: I'm a B.Tech graduate in Computer Science from XYZ University with strong skills in Java and Python...
Q2. Why do you want to join TCS?
EasyView Expert Answer
Mention TCS's global presence, learning opportunities, diverse project exposure, and company culture. Reference specific TCS initiatives like TCS iON or innovation labs.
Q3. Where do you see yourself in 5 years?
EasyView Expert Answer
Show ambition within TCS: becoming a technical expert, leading teams, contributing to innovative projects. Align with TCS's growth path.
Technical Questions(4 questions)
Q1. Explain OOP concepts with examples
MediumView Expert Answer
Cover Encapsulation, Inheritance, Polymorphism, and Abstraction with real-world examples and code snippets in Java or Python.
Q2. What is the difference between ArrayList and LinkedList?
MediumView Expert Answer
ArrayList uses dynamic array (fast random access O(1), slow insertion O(n)). LinkedList uses doubly-linked list (slow access O(n), fast insertion O(1)). Use ArrayList for read-heavy, LinkedList for write-heavy operations.
Q3. Explain SQL joins with examples
MediumView Expert Answer
INNER JOIN (matching rows), LEFT JOIN (all left + matching right), RIGHT JOIN (all right + matching left), FULL OUTER JOIN (all rows), CROSS JOIN (cartesian product).
Q4. What is Agile methodology?
EasyView Expert Answer
Agile is an iterative approach to software development. Key concepts: Sprints, Daily Standups, Sprint Planning, Retrospectives. Frameworks: Scrum, Kanban. Benefits: faster delivery, flexibility, customer collaboration.
Coding Questions(1 questions)
Q1. Write a program to reverse a string
EasyView Expert Answer
Multiple approaches: StringBuilder reverse(), char array swap, recursion. Time: O(n), Space: O(n) for new string, O(1) for in-place char array.
Pro Tips from Past TCS Candidates
Use the STAR method consistently
Structure every behavioral answer as Situation → Task → Action → Result. Interviewers are trained to evaluate STAR responses.
Ask thoughtful questions at the end
Ask about TCS's upcoming projects, team culture, or growth trajectory. Never ask about salary/benefits in the first round.
Research recent company news
Mention TCS's recent product launches, earnings, or industry moves in your answers. It shows genuine interest.
Prepare your 'Why this company?' answer
Don't give generic answers. Be specific: 'I admire TCS's [specific project/initiative] because...' with personal connection.
Follow up with a thank-you email
Send a brief, personalized thank-you within 24 hours referencing specific discussion points. It sets you apart from 90% of candidates.
Common Mistakes to Avoid
Practice These Questions with AI
Get instant feedback on your answers with our AI-powered mock interview tool. Practice TCS interview questions with real-time evaluation and scoring. Used by 50K+ candidates.
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