--- title: "TCS interview process and practice questions | Orbit" description: "How TCS interviews, as candidates commonly report it: the rounds, what interviewers listen for, and 14 practice questions with what a good answer covers." canonical: https://orbitanswer.com/companies/tcs last_reviewed: 2026-10-18 --- [Companies](https://orbitanswer.com/companies) [Roles](https://orbitanswer.com/roles) [Free warm-up](https://orbitanswer.com/warmup) - [Home](https://orbitanswer.com/) - [Companies](https://orbitanswer.com/companies) - TCS Company interview guide # TCS interview process and practice questions TCS hires most freshers in India through the TCS National Qualifier Test (NQT), a computer-based test run through TCS iON, followed by interviews that candidates commonly describe as technical, managerial and HR rounds, often on the same day. The interviews usually stay close to fundamentals (OOP, DBMS, SQL, one programming language), your resume and your final-year project, with HR questions on relocation and shifts. As candidates commonly report it; it varies by team, level and year. Last reviewed 18 October 2026. [Practise a mock interview in TCS's style](https://orbitanswer.com/register) [Warm up free on these questions](https://orbitanswer.com/warmup?track=company%3Atcs) ## The interview process - 1 TCS NQT (aptitude, reasoning, verbal and coding) - 2 Technical interview - 3 Managerial interview - 4 HR interview ### Outside India Candidates elsewhere more often report: - Online application, with an online test for some graduate roles - Recruiter or HR screen - Technical interview on your skills and past projects - Managerial interview (for some roles, a client interview as well) - HR discussion ## What interviewers listen for - Fundamentals: OOP, DBMS, a programming language, your final-year project - Clear communication - Willingness to relocate and work in shifts - Learning attitude and teamwork - Integrity - Leading Change - Excellence - Respect for the Individual - Learning and Sharing ## Behavioral questions ### Tell me about a time you had to learn a new tool or language quickly. A good answer covers - Why you needed it and how little time you had - How you learned it: documentation, small experiments, asking someone - What you delivered with it and what you'd do faster next time ### Tell me about a disagreement in a team project and how it was resolved. A good answer covers - What the disagreement was about, described fairly from both sides - What you said or did to move it forward, such as testing both ideas - How it ended and how the team worked together afterwards ### Tell me about a time you balanced your studies with another big responsibility. A good answer covers - The two commitments, such as a club, sport, part-time work or family duty - How you planned your time and what you gave up - The result for both, and what it taught you about deadlines ### What is one weakness you're working on, and what are you doing about it? A good answer covers - A real weakness that matters at work, not a disguised strength - A specific example of when it caused a problem - The steps you're taking and the progress you can show ## Role and technical questions ### Explain your final-year project and your part in it. A good answer covers - The problem it solved and who would use it - How it works in plain words: front end, back end, database, any outside services - What you built yourself, one difficulty you hit and how you solved it ### What is the difference between an abstract class and an interface? A good answer covers - An abstract class can hold state and some implemented methods; an interface mainly defines a contract - A class extends one class but can implement many interfaces (in Java or C#), and how default methods blur the line - When you'd choose each, with a small example such as shapes or payment methods ### What is the difference between a primary key, a unique key and a foreign key? A good answer covers - Primary key: identifies each row, no nulls, one per table - Unique key: no duplicates but can usually allow a null; a table can have several - Foreign key: links to another table's key, with an example such as orders and customers ### What happens, step by step, when you type a website address into a browser and press Enter? A good answer covers - DNS lookup to find the server's IP address - Opening a connection (TCP, and TLS for HTTPS), then the HTTP request and response - The browser rendering HTML, CSS and JavaScript and fetching other files ### A client's banking application becomes slow every month-end. How would you start finding the cause? A good answer covers - Asking what 'slow' means: which screens, which users, since when - Checking what is different at month-end: batch jobs, report queries, traffic - Looking at logs and database query times before guessing, then a fix and a check ### For experienced candidates: tell me about a production issue on your project and how your team handled it. A good answer covers - What broke, who was affected and how it was noticed - Your part in finding the cause and fixing it - What changed afterwards to stop it recurring, such as a test, alert or process ## Why TCS? Fit and HR questions ### Tell me about yourself. A good answer covers - Your degree, college and the one or two skills you're strongest in - Your best project or internship in two sentences, with your own part in it - Why you're applying for this role, all in under two minutes ### Are you willing to relocate and work in any shift? A good answer covers - A clear, honest answer: yes, or yes with a real constraint stated politely - That you understand client work can follow other time zones - Something that shows you adapt well, such as studying or working away from home ### Why do you want to join TCS? A good answer covers - One or two specific reasons: training for new joiners, the range of industries it serves, moving across technologies - How that fits what you want to learn in your first few years - Something you've read about its work, not general praise for its size ### Do you have any questions for us? A good answer covers - One or two thoughtful questions about the training, the first project or the team - Nothing you could easily find on the careers site - A short thank-you and a line on why you're still keen ## Tips - Know your project inside out: they'll ask what you built yourself. - Revise OOP, DBMS and SQL basics; expect one or two simple coding questions. - Answer HR questions honestly and briefly; relocation and bond questions are common. - Read the current NQT pattern on the official registration page before you prepare; sections and timings can change between cycles. - Draw your project's flow on paper beforehand: modules, database tables, and who did what. - In the managerial round, expect a 'what would you do' scenario; reason aloud and say how you'd keep the client informed. - If you don't know an answer, say so and explain how you'd find out; guessing on a basic concept costs more. ## Practise it out loud A mock interview asks the way TCS's interviewers are known to, follows up on your answers and gives you a report. The warm-up is free, needs no account and checks five of these questions as you answer. [Practise a mock interview in TCS's style](https://orbitanswer.com/register) [Warm up free on these questions](https://orbitanswer.com/warmup?track=company%3Atcs) ## About this guide Written by Orbit from TCS's own public pages and what candidates commonly report. Orbit isn't affiliated with TCS. The questions are practice questions in the style of its interviews, not questions taken from them. Processes change, so check the job post and what your recruiter tells you. ### Sources - [TCS iON National Qualifier Test (tcsion.com)](https://www.tcsion.com/hub/national-qualifier-test/) ## Role guides to read with this one - [Campus placement (freshers) Campus placement processes, especially in India, commonly run in stages: an online aptitude test, often with coding or subject questions, a technical… 18 practice questions](https://orbitanswer.com/roles/campus-placement) - [Software engineer Software engineer interviews usually combine coding (solving a problem out loud, often in a shared editor), computer science fundamentals and a discussion of… 17 practice questions](https://orbitanswer.com/roles/software-engineer) - [QA engineer QA and test engineer interviews usually test how you think about what could go wrong: writing test cases for an everyday feature, reporting a bug clearly and… 17 practice questions](https://orbitanswer.com/roles/qa-engineer) - [Backend developer Backend developer interviews usually focus on APIs, databases and how a service behaves under load or failure, alongside coding in the role's main language… 17 practice questions](https://orbitanswer.com/roles/backend-developer) ## More guides: it services and outsourcing - [Tech Mahindra Tech Mahindra, part of the Mahindra Group, is known for its telecom and communications work alongside wider IT services. 14 practice questions](https://orbitanswer.com/companies/tech-mahindra) - [Wipro Wipro hires many engineering freshers in India through Elite, its national talent hunt for new graduates, which candidates commonly describe as an online… 14 practice questions](https://orbitanswer.com/companies/wipro) - [Accenture For freshers in India, candidates commonly report online cognitive, technical and coding assessments and a spoken-English communication test, followed by one… 14 practice questions](https://orbitanswer.com/companies/accenture) - [Capgemini Capgemini's India careers site lists its fresher process as an online aptitude test, a coding or technical assessment, a group discussion for select roles, a… 14 practice questions](https://orbitanswer.com/companies/capgemini) - [Coforge Coforge, known as NIIT Technologies until 2020, organises its work around industries such as banking and financial services, insurance and travel, and its… 14 practice questions](https://orbitanswer.com/companies/coforge) - [Cognizant Cognizant hires most freshers in India through GenC (Generation Cognizant), which it describes as its hiring and development programme for emerging talent,… 14 practice questions](https://orbitanswer.com/companies/cognizant) [All 100 company guides](https://orbitanswer.com/companies) [Guides by role](https://orbitanswer.com/roles)