1. Write a program to reverse a string without using built-in functions.
Why they ask: A standard warm-up to check you can actually code.
How to answer: Use two pointers swapping from both ends; explain time O(n) and space complexity before writing.
Company guide
Tech Mahindra interview questions (2026) — freshers and laterals
Tech Mahindra's process emphasises communication (a dedicated essay or versant-style test), telecom and networking awareness, and a practical technical round.
How the process runs
- 1Online test — aptitude, English essay, coding
- 2Technical interview — language fundamentals, SQL, project
- 3HR interview — relocation, bond, expectations
Top 5 questions, with what they're really testing
2. What is normalization in DBMS?
Why they ask: SQL and database design appear in almost every Tech Mahindra TR.
How to answer: Organising tables to reduce redundancy. Explain 1NF, 2NF, 3NF with a student-course example.
3. What do you know about 5G?
Why they ask: Telecom is Tech Mahindra's core domain.
How to answer: Higher speed, lower latency, network slicing; mention one use case like connected manufacturing.
4. Describe a time you worked in a team under a deadline.
Why they ask: Behavioural fit for client delivery.
How to answer: Use STAR: situation, task, your action, measurable result. Keep it under 90 seconds.
5. Are you open to relocation to any city?
Why they ask: Project allocation is pan-India.
How to answer: Say yes if true, and name preferred cities politely without making it a condition.
16 more questions
Practise these out loud, scored
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