Start with your actual job invitation. Check the role, eligibility, assessment instructions and whether the interview is online or on campus. Then prepare three things you can control: a working understanding of technical basics, a truthful explanation of your projects, and short answers to practical HR questions. The questions below are original practice exercises, not verified questions asked by either company’s interviewers.
Infosys vs Wipro: which preparation fits your application?
| Area | Infosys: what official material supports | Wipro: what official material supports |
|---|---|---|
| Programme differences | Power Programmers hiring includes coding rounds and live technical interviews. | Early-career routes include Elite, Turbo, STAR, WILP and other programmes. |
| Technical preparation | Programming and problem-solving matter particularly for specialist paths. | Technical knowledge is important, but the requirements depend on the programme and the position. |
| Project discussion | Useful preparation for explaining design choices and bugs | Useful preparation for demonstrating applied skills and teamwork |
| Communication | Clearly explain your reasoning in both technical and behavioural discussions. | Individual Wipro job postings explicitly value communication, analytical thinking and teamwork. |
| Exact round count | Do not assume one fixed sequence for every applicant. | Do not assume one fixed sequence for every applicant. |
For Infosys’s Power Programmers programme, the company’s own career page lists registration, coding rounds, live technical interviews and final selection. Wipro’s official early-careers page lists distinct programmes for different target groups. These descriptions do not establish the exact interview sequence for every systems engineer, Elite, Turbo, WILP or experienced-role applicant. Always follow the current invitation.
Build evidence for the role you applied for
There is no universal Infosys or Wipro interview sequence
- 1Read your invitationRole, programme, dates and format
- 2Refresh the basicsCode, DBMS, OOP or job-specific tasks
- 3Explain your projectYour part, tradeoffs, bug and tests
- 4Rehearse the conversationFollow-ups, HR details, honest answers
Finish with a mock interview that challenges your assumptions.
What interviewers can learn from your answers
You cannot know a panel’s private scorecard. You can, however, prepare evidence that a technical or hiring panel can examine. A confident voice is useful; correct reasoning and an honest account of your work are more valuable.
| What the panel may be assessing | Weak answer | Stronger evidence |
|---|---|---|
| Fundamentals | “I know all OOP concepts.” | Explains when an interface helps and gives a small example |
| Debugging | “I fixed many bugs.” | Reproduces a failure, isolates a cause and explains the fix |
| Coding judgement | Writes a solution without testing | States assumptions, complexity and edge cases |
| Ownership | “We built an app.” | Explains their part, a design decision and what they would change |
| Collaboration | “I’m a team player.” | Describes a disagreement resolved with a concrete action |
| Readiness | “I can join immediately.” | Gives a truthful joining date or notice period |
If you are a non-CS graduate, don’t pretend to have studied every subject. Prioritise the technologies listed for your specific role, and explain where you have applied them. Interview depth can differ substantially even within the same company.
Infosys interview preparation: broad roles and specialist coding paths
For a general graduate technology role, prepare programming basics, SQL, object-oriented concepts, problem-solving, project discussion and communication. For a specialist programme, make your coding practice more challenging. Infosys explicitly describes live coding interviews for its Power Programmers group. That is a stronger basis for practising live coding than a blog’s claim that every candidate receives the same number of puzzles.
A useful live-coding rehearsal is to solve one problem on paper or in a plain editor, speak through the assumptions and test awkward inputs before finalising. Don’t spend the whole session memorising definitions. It is possible to recite “polymorphism” perfectly and still be unable to explain a change you made in your application.
Original Infosys-style technical practice questions
1What is the difference between a process and a thread?
“A process has its own address space and resources; threads within a process typically share that process’s memory while having their own execution state.”
An interviewer may follow up with a thread-safety example, so discuss shared mutable state and synchronisation rather than stopping at the definition.
2What happens when you go out of bounds on an array?
“The answer varies with language. Java and Python throw runtime errors for an invalid index. In C, accessing memory outside an array’s bounds leads to undefined behaviour.”
There is no universal answer, so state the language first.
3When would you use an index in a database?
“An index can make a query faster, particularly if it means the database doesn’t have to look at every record to find or sort rows. It costs storage and makes writes more expensive. I would look at the query plan and workload first before adding one.”
4Define SQL INNER JOIN with an example.
“If orders have a customer_id and customers have an id, an inner join returns only those orders that have a matching customer record.”
Be prepared to discuss duplicates and what happens when a customer row is missing.
5What is the difference between an interface and an abstract class?
“Both can describe contracts, but the exact behaviour differs by language. In Java, a class can implement multiple interfaces, while it can extend only one class.”
Choose an example from a language you have used and explain why the design helps.
6What does time complexity tell you?
“It describes how the work grows with the size of the input for a given model. If you only need one pass, an O(n) scan might be better than an O(n log n) sort.”
Talk about the actual task and memory, not just the symbol.
7How would you troubleshoot an API that is returning HTTP 500?
“First, reproduce the request. Then look at the logs and traces around the failure, and work out whether it is an application logic error, a dependency error, a database access error or a deployment error. I wouldn’t just change production; I’d run a targeted regression test to validate the fix.”
8Tell us a bug story from your final-year project.
Use a specific bug.
“The backend relied on a frontend check, so it let duplicate event registrations in. I added a database constraint and returned a useful error for repeat submissions.”
This is illustrative wording; use a bug you actually fixed.
Small coding exercise: first repeated number
Given [4, 2, 7, 2, 4], return the first value whose second occurrence appears earliest. The answer is 2, because its second appearance comes before the second 4.
A simple approach is to scan left to right while storing values in a set. If a value is already in the set, return it. This uses O(n) expected time and O(n) space for a hash set. Test an empty list, a list with no duplicates and two duplicates competing to be first.
“I’ll scan once and note the numbers I’ve seen. The moment I find a repeated number, its second occurrence is earlier than any repeat I haven’t reached yet. I return that value, or None if no number repeats.”
This exercise is a preparation prompt, not a claim about an actual Infosys interview question.
Wipro interview preparation: match the programme and job posting
Wipro’s early-careers page distinguishes Elite from Turbo and STAR programmes. Its site also lists non-engineering and work-integrated learning routes. Don’t use a Turbo coding-preparation plan as the only preparation for a communication-heavy process role.
For an engineering graduate role, review a programming language, data structures, OOP, SQL, your main project and examples of working with others. For a support or operations role, add problem investigation, customer communication, basic computer tasks and shift requirements when the posting mentions them.
A real Wipro Test Engineer job posting lists communication, analytical and problem-solving skills, teamwork and familiarity with computer science concepts as relevant, with internship experience considered helpful. That is a concrete reason to prepare examples beyond coding, although it is not a universal Wipro assessment rubric.
Original Wipro-style technical and situational practice questions
9Explain the difference between a stack and a queue.
“A stack is last in, first out; a queue is first in, first out. A stack can support undo history, while a queue can model work waiting to be processed.”
Give a real task, and explain what happens when the structure is empty.
10How do you prevent duplicate inserts?
“First decide what “duplicate” means in the business rules. For a registration system, a unique database constraint can protect the key combination, and the application should handle the resulting conflict clearly. A frontend check alone is vulnerable to concurrent requests.”
11What is a primary key?
“A primary key uniquely identifies a row in a table, and it cannot be null.”
Take a small schema and point out a candidate key and a foreign key.
12Why do we write unit tests?
“They check small units of behaviour with controlled inputs, catch regressions and document expectations. They cannot replace integration tests or prove the absence of defects.”
Describe one test you actually wrote.
13A customer says the application is slow. What do you do?
“I’d ask which action is slow, when it happens and whether all users are affected. Then I’d replicate the issue, check the relevant metrics and logs, and tell the customer when they should expect to hear back.”
Don’t promise a fix time without evidence.
14What if your teammate doesn’t agree with your approach?
“I’d describe the trade-off and ask what requirement their proposal meets. Where practical, we compare both approaches with a small test or agreed criteria, then document the decision.”
A specific past example is better than claiming you never disagree.
15How would you explain a technical delay to a non-technical person?
Describe the impact, the known facts, the uncertainties and the date of the next update.
“We are testing intermittent checkout responses and have narrowed the problem to the payment callback. We will update you after the next test run.”
Avoid unexplained jargon.
The project questions that reveal whether you did the work
Many candidates describe a project in one fluent paragraph but struggle when asked why they chose a database or how they tested errors. Prepare a project map before the interview.
| Follow-up | Evidence to prepare |
|---|---|
| What problem does the project solve? | One-sentence user problem and intended outcome |
| What exactly did you build? | Your files, modules, tests, screens or endpoints |
| Why did you choose this technology? | One tradeoff and what you would consider instead |
| What broke during development? | A reproducible bug and how you found it |
| How did you check it worked? | Tests, sample requests, user checks or a demonstration |
| What would you improve next? | One realistic limitation and priority |
Worked example: a project explanation with follow-up
Imagine a fresher built an appointment-booking prototype with Java and MySQL. A weak answer is “I developed a complete hospital management system.” A more defensible explanation is: “I wrote the appointment creation API and the database table for available slots. The first version allowed two bookings for the same slot when requests arrived together, so we added a database constraint and handled the conflict response.” This is a fictional teaching example, not a candidate testimonial.
The obvious follow-up question is, “Why wasn’t a check in Java enough?” Answer: two requests may pass an application-level availability check before either commits. A database constraint can protect uniqueness at the storage layer. Be ready to explain the exact schema and error path you implemented. If your actual project never handled concurrency, do not claim that it did.
HR interview questions for Infosys and Wipro
Your answer should fit your actual circumstances. Interviewers can ask about job motivation, working arrangements, learning, location and joining dates. Practise these as conversations, not speeches.
16Tell me about yourself.
“I have recently completed my B.Tech. in ECE. In a project to collect sensor readings, I wrote the Python code that cleaned the data and built a simple dashboard. I enjoyed debugging the data pipeline and am looking for an entry-level technology role where I can continue to develop that work.”
Insert your own facts.
17Why this company and this role?
Refer to the advertised work, programme or training arrangement and say why it fits. Don’t repeat publicity claims you haven’t checked.
“The role describes application support and structured learning. I enjoyed investigating errors in my internship, and I want to build that skill in a larger team.”
18What is your biggest weakness?
Choose a limitation with a real correction.
“I used to keep troubleshooting alone for too long. I now set a checkpoint and share what I’ve tried when I need another opinion.”
Have an example ready.
19Are you ready to relocate or work in shifts?
Tell them your real limits.
“I can move to Bengaluru with a 3-week notice period. I need to check the reporting location and confirm.”
If you can’t move, say so; don’t agree to everything.
20What is your joining date?
Freshers should check exam and graduation dates. Employed candidates should give their contractual notice period and confirmed last day when available.
Don’t promise an early release without agreement.
21Tell me about a disagreement in a team.
Describe the issue, your part, the discussion and the outcome. A small college-project disagreement is fine for a fresher; avoid blaming an absent teammate.
22What would you do if you didn’t know an answer?
Ask for clarification and explain what you know. In a coding interview, state an initial approach and test your assumptions. Inventing a definition usually creates more trouble than saying you need to think.
23Do you have questions for us?
Ask how training is structured, what the first months involve, which technologies the role uses or how the team measures good work. Choose a question the interviewer is likely to know.
A seven-day preparation plan
| Day | 45- to 75-minute focus | What you should finish with |
|---|---|---|
| 1 | Verify role and invitation; review resume | Two project explanations and accurate dates |
| 2 | Core programming, arrays, strings and complexity | One coding solution explained, with edge-case tests |
| 3 | OOP, DBMS, SQL and OS basics | Short explanations and a database example |
| 4 | Debugging and technical scenarios | One bug story with cause and verification |
| 5 | Company programme and role requirements | A list of topics specific to your application |
| 6 | HR questions and communication practice | Honest answers on motivation, location and joining |
| 7 | Full mock with follow-ups | Three clear changes before the real round |
If you are applying for a specialist coding path, give more time to medium-difficulty coding practice. If you are applying for a support role, devote that time to diagnosing issues and explaining them calmly. A timed seven-day plan is only a preparation routine, not a statement about either company’s official schedule.
How to practise an online interview without memorising scripts
Start by giving the interviewer a target role and a short summary of your actual project. Ask for one question at a time, followed by a challenge about your answer. After the session, review where your explanation became vague. Rehearse that section again with the same facts.
“Interview me for a junior software position. Ask me one question at a time about programming fundamentals and my project. After each answer, ask a specific follow-up question. Don’t make up details about my work or pretend to know an employer’s private criteria for judging.”
Use Walkin24’s AI mock interview to rehearse technical answers and its HR interview practice to rehearse HR answers before the actual discussion. Select a company-focused practice option if one is available, but use the employer’s current invitation as the source of truth about its process.
Check that the recruitment message is genuine
Both employers warn about recruitment fraud. Infosys says it does not charge or accept money or security deposits from job seekers. Wipro also makes it clear that it does not ask for payment at any stage of the recruitment process. Check official careers channels for applications and invitations, and be wary of requests for payments or sensitive financial information.
Do not send a PAN, Aadhaar, bank details or credentials to an unverified person claiming to be a recruiter. If a message looks suspicious, check the company’s official recruitment warning page before responding.
The last rehearsal to do
Choose one coding problem, one project question and one HR question. Answer them aloud, then ask a friend or mock interviewer to challenge your assumptions. Fix your weakest answer first. That is a better use of the final hour than trying to memorise another hundred questions.
FAQs about Infosys and Wipro interview preparation
Are the same interview questions asked every year?
No reliable public question bank can guarantee such consistency. Focus on subjects relevant to your job and practise explaining your reasoning. The precise tasks, format and follow-ups may vary between programmes and hiring cycles.
Is coding compulsory for every Infosys or Wipro applicant?
Not necessarily. Specialist paths such as Infosys Power Programmers include coding rounds and live coding interviews, but requirements for other roles depend on the programme and position, and some support or process roles focus more on problem investigation and communication. Check your job description and invitation, and prepare programming basics if the role is technical.
Can non-CS students prepare for technical rounds?
Yes. Start with the programming or domain requirements in the posting. Be honest about your branch and project experience. Prepare transferable problem-solving examples and fill gaps in the exact topics the role needs.
Do I need to know my entire final-year project?
Understand your own module, dependencies, important design decisions, tests and limitations. If someone else wrote a section, say so. Panels can ask follow-ups that expose exaggerated ownership.
How should I handle a question I cannot answer?
Ask for a moment, explain what you can establish and describe the next step you would take. If a definition or coding approach is unfamiliar, don’t invent one. One honest gap is easier to recover from than an elaborate wrong answer.
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