Get Ready for These Top Tech Mahindra Interview Questions

Tech Mahindra interview questions

Tech Mahindra interview questions have the purpose of testing and evaluating a developer's ability to solve real-world problems using efficient and ordered code. Consider managing complicated coding scenarios, spanning from fundamental principles such as arrays and loops to advanced themes in algorithms and data structures. This article will walk you through some of the most important Tech Mahindra interview questions, covering key principles, real coding examples, and essential recommendations to help you exhibit your talents effectively.

In this Interview questions tutorial, I'll explain essential questions, offer insights into how to approach each issue, and explain why mastering these topics is critical to completing the interview and laying a solid basis for your tech career.

What to Expect in Tech Mahindra Interviews

Tech Mahindra interviews will explore your talent for the interviewer, as well as your project experience and technical expertise. They may evaluate your problem-solving skills and communication abilities. Expect behavioral questions aimed at understanding your teamwork, adaptability, and approach to challenges. For technical roles, be ready to demonstrate coding skills or take technical assessments.

Understanding Tech Mahindra Interview Process

Tech Mahindra Interview Questions for Freshers

Q1. What is Object-Oriented Programming (OOP)?

Ans: OOP is a programming paradigm that uses "objects" (instances of classes) to model real-world entities. The four main principles of OOP are:

• Encapsulation: Wrapping data (variables) and methods into a single unit (class).
• Inheritance: One class (child) can inherit properties and behavior from another class (parent).
• Polymorphism: Ability to take many forms. It allows objects to be treated as instances of their parent class.
• Abstraction: Hiding the complex implementation details and exposing only essential features.

Q2. What is the difference between a stack and a queue?

• Ans: A stack is a Last In, First Out (LIFO) data structure. You can only add and remove components from the top.
• A queue is a First In, First Out (FIFO) data structure. You add things in the back and remove them from the front.

Q3. Write a program to check if a number is prime.

#include <iostream>
#include <cmath>
using namespace std;

bool isPrime(int num) {
    if (num <= 1) return false;
    for (int i = 2; i <= sqrt(num); i++) {
        if (num % i == 0) return false;
    }
    return true;
}

int main() {
    int num;
    cout << "Enter a number: ";
    cin >> num;
    if (isPrime(num)) {
        cout << num << " is a prime number.\n";
    } else {
        cout << num << " is not a prime number.\n";
    }
    return 0;
}
            

using System;

class Program {
    public static bool IsPrime(int num) {
        if (num <= 1) return false;
        for (int i = 2; i <= Math.Sqrt(num); i++) {
            if (num % i == 0) return false;
        }
        return true;
    }

    static void Main() {
        Console.Write("Enter a number: ");
        int num = int.Parse(Console.ReadLine());
        if (IsPrime(num)) {
            Console.WriteLine($"{num} is a prime number.");
        } else {
            Console.WriteLine($"{num} is not a prime number.");
        }
    }
}
            

import math

def is_prime(num):
    if num <= 1:
        return False
    for i in range(2, int(math.sqrt(num)) + 1):
        if num % i == 0:
            return False
    return True

num = int(input("Enter a number: "))
if is_prime(num):
    print(f"{num} is a prime number.")
else:
    print(f"{num} is not a prime number.")
            

import java.util.Scanner;

public class PrimeCheck {
    public static boolean isPrime(int num) {
        if (num <= 1) return false;
        for (int i = 2; i <= Math.sqrt(num); i++) {
            if (num % i == 0) return false;
        }
        return true;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a number: ");
        int num = scanner.nextInt();
        if (isPrime(num)) {
            System.out.println(num + " is a prime number.");
        } else {
            System.out.println(num + " is not a prime number.");
        }
        scanner.close();
    }
}
            

Prime Check Output: {number} is a prime number.
        

Q4. What is normalization in databases?

Ans: Normalization refers to the process of structuring data in a database. It entails constructing tables and developing relationships between them in accordance with rules intended to secure data while also making the database more adaptable by removing redundancy and inconsistent reliance.

• 1NF: No duplicate columns. Each column contains atomic values.
• 2NF: Follows 1NF and removes partial dependencies.
• 3NF: Follows 2NF and removes transitive dependencies.

Q5. Explain the difference between process and thread.

Ans: A process is the program being executed, whereas a thread is the smallest chunk of instructions that can be handled separately by a scheduler.

Q6. Write an SQL query to find the second-highest salary from an employee table.

Ans: SELECT MAX(salary) 
FROM employees 
WHERE salary < (SELECT MAX(salary) FROM employees);

Q7. What is a deadlock, and how can it be prevented?

Ans: A deadlock occurs when two or more processes are unable to proceed because each is waiting for the other to release a resource.

Deadlocks can be prevented by:

• Avoiding circular wait by ensuring that resources are requested in a predefined order.
• Using timeouts to abort processes that wait too long.
• Ensuring a process holds only one resource at a time (no hold and wait).

Q8. Explain the difference between IPv4 and IPv6.

Ans: IPv4 is a 32-bit address system with around 4.3 billion unique addresses. It uses decimal notation (e.g., 192.168.1.1).

IPv6 is a 128-bit address system that allows for a vastly larger number of unique addresses (approximately 340 undecillion). It uses hexadecimal notation (e.g., 2001:0db8:85a3::8a2e:0370:7334).

Q9. Write a program to reverse a string.

#include <iostream>
#include <algorithm>
using namespace std;

string reverseString(string str) {
    reverse(str.begin(), str.end());
    return str;
}

int main() {
    string input = "hello";
    cout << "Reversed string: " << reverseString(input) << endl;
    return 0;
}    

using System;

class Program
{
    public static bool IsPalindrome(string str)
    {
        string reversed = new string(str.Reverse().ToArray());
        return str.Equals(reversed, StringComparison.OrdinalIgnoreCase);
    }

    static void Main()
    {
        string input = "madam";
        Console.WriteLine("Is palindrome: " + IsPalindrome(input));
    }
}

def reverse_string(s):
    return s[::-1]

input_str = "hello"
print("Reversed string:", reverse_string(input_str))  

public class ReverseString {
    public static String reverse(String str) {
        StringBuilder sb = new StringBuilder(str);
        return sb.reverse().toString();
    }

    public static void main(String[] args) {
        String input = "hello";
        System.out.println("Reversed string: " + reverse(input));
    }
}

Output

 Reversed string: olleh 

Q10. Why do you want to work at Tech Mahindra?

Ans: "I wish to work at Tech Mahindra because it is a prominent IT services provider with a strong global presence. I love its emphasis on innovation, digital transformation, and delivering value to customers. Working here would allow me to learn and grow in a dynamic atmosphere while contributing to important projects."

Types of Interviews at Tech Mahindra

Tech Mahindra often uses different ways to interview you to find the right people for the job. They have technical interviews to check your skills and knowledge in your area. They also hold HR interviews to look at your personality and how well you fit with the company. This helps them see if you will get along with the team.

Sometimes, you also have a managerial round or a group discussion. This part shows how you communicate with others and your leadership skills. It is a chance for them to see how you work in a team and make decisions. Overall, these different types of interviews help Tech Mahindra understand who you are and how you can help the company.

Overview of Different Interview Processes

• Technical interviews: Technical interviews are used to evaluate candidates' proficiency with programming languages such as C++, Python, and Java. It contains inquiries about database ideas, operating systems, software development processes, data structures, and algorithms.
• HR interviews: Assess personality, objectives, and cultural fit within Tech Mahindra during HR interviews. In order to evaluate a candidate's communication skills and compatibility with the company's principles, common questions include strengths and shortcomings, the reasons for selecting Tech Mahindra, and career goals.
• BPO Interviews: Designed to assess competencies unique to the business process outsourcing industry. Effective customer service, problem-solving skills, and communication are prioritized, with an emphasis on both efficiency and empathy.
• Interviews for Customer Support:Evaluates a person's capacity to communicate with clients and effectively handle problems. Because they help to maintain excellent customer experiences, abilities like active listening, empathy, and dispute resolution are crucial.
• Voice Process Interviews: For roles involving phone-based communication with customers. Candidates are assessed on verbal communication skills, clarity, accent, listening skills, and professionalism under pressure.
• Non-Voice Process Interviews: For roles primarily involving written communication. The focus is on written clarity, attention to detail, and accuracy, as well as handling tasks efficiently without verbal interaction.
• .NET Developer Interviews: Targets technical expertise in the .NET framework. Includes knowledge of MVC architecture, C# skills, and experience with .NET tools. Proficiency in coding, problem-solving, and application development are key areas of focus.

Tech Mahindra Technical Interview Questions

Programming Languages (Java, Python, C++)

Q11. What is the difference between a class and an object?

Answer: A class is a template for constructing objects. It specifies the features and behaviors that the item will exhibit. An object is a class instance that contains real values for its properties.

Q12. What are abstract classes in Java?

Answer:An abstract classin java cannot be instantiated and can include abstract methods without implementation. It’s used as a base class to define common behaviors for subclasses.

Q13. How do you reverse a string in Python?

def reverse_string(s):
    return s[::-1]

print(reverse_string("Tech Mahindra"))  # Output: "ardnihaM hceT"

Q14. Explain inheritance in C++.

Answer:Inheritance is a mechanism for reusing and extending existing classes without changing them, resulting in hierarchical relationships between them. In the main function, object obj uses the statement obj to call function A::f() via its data member B::x.

Q15. What is polymorphism in object-oriented programming?

Answer: Code flexibility is made possible via polymorphism, which enables methods to perform multiple actions depending on the object they are acting upon. Polymorphism in OOPs is accomplished via overriding and overloading methods.

Data Structures and Algorithms

Q16. Explain the concept of a linked list.

Answer: A linked list is a data structure wherein each element (node) contains a reference pointer to the next address of a successor node that needs to be utilized, thus allowing dynamic memory allocation.

Q17. What is polymorphism in object-oriented programming?

Answer:Polymorphism means that methods can behave differently depending on the object on which they act; enabling this may allow for greater code flexibility. Polymorphism can be done in such OOP by overloading and overriding methods.

Q18. What is a binary search algorithm?

Answer:Binary search is a fast search algorithm that works and operates on a sorted array by repeatedly dividing half of the portion of the search interval in half.

Q19. Explain the stack data structure.

Answer:A stack is a Last In, First Out (LIFO) data structure in which the last inserted piece is the first to be removed.

Q20. How does bubble sort work?

Answer:Bubble sort repeatedly steps through the list, comparing adjacent elements and swapping them if they are in the wrong order.

Q21. What is the time complexity of quicksort?

Answer: The average time complexity is O(n log n), but it can degrade to O(n^2) if the pivot points are poorly chosen.

Software Development Methodologies Interview Questions

Q22. What is Agile methodology, and why is it popular in software development?

Answer: Agile is an iterative software development style where requirements and solutions are developed through teamwork. Its emphasis on flexibility, client happiness, and ongoing improvement accounts for its popularity. Teams can meet new requirements even at the end of a project because Agile supports flexible planning and quick delivery. By regularly releasing small, useful components, agile improves product quality and shortens release times.

Q23. Can you explain the difference between Agile and Waterfall methodologies?

Answer: The Waterfall approach requires you to finish each step before going on to the next, much like a straight line. Gathering requirements is the first step, followed by design, implementation, testing, and deployment. It's similar to having a defined structure. Projects with clear criteria from the start are a good fit for this approach.

In contrast, Agile is like a flexible path that allows for changes and continuous input from clients. It is like working in sprints, where each sprint includes design, development, and testing all in one go. This approach is like being perfect for dynamic projects, as it embraces modifications even after the work has begun.

Q24. What are user stories in Agile, and how do they benefit the development process?

Answer: One quick and straightforward Agile method for describing a feature from the viewpoint of the user is to utilize a user narrative. "As a [type of user], I want [some goal] so that [some reason]." Similar to practical development tools, user stories facilitate communication between all stakeholders and guarantee that the end product satisfies user needs. You can concentrate on delivering the most crucial components first by using them to assist in prioritizing features according to user values.

Q25. What is the Scrum framework, and how does it fit into Agile methodology?

Answer:Scrum, an Agile method, emphasizes teamwork, responsibility, and making consistent progress toward your objectives. Sprints are small, manageable pieces of work that last two to four weeks. You're all prepared to keep on track with responsibilities like Development Team, Product Owner, and Scrum Master, as well as frequent meetings like Sprint Planning, Review, and Retrospective. This strategy allows you to receive continual input and continuously improve so that you can produce excellent items faster.

Q26. What is the significance of the Minimum Viable Product (MVP) in Agile development?

Answer: AnMVP in Agile development is a product with only enough features to draw in early users and collect feedback. With this method, you may test your ideas without having to commit to a full-scale launch right away, and it saves money and development time, among other important benefits. Through gradual learning and development, this approach guarantees that the end product meets the demands of real customers and the market.

Specific Technical Questions

Q27. What is database normalization, and why is it important?

Answer:Database normalization is a way to organize your database so it works better. Instead of having big tables with lots of repeated information, you break them into smaller, related tables. You follow rules called normal forms, like 1NF, 2NF, and 3NF, to help you do this. By reducing redundancy, you avoid storing the same information in several places. For example, you keep a customer’s contact details in one table and link it from others. This saves space and makes updates easier since you only have to change the information in one spot.

Normalization also keeps your data accurate and speeds up performance. With everything organized, you’re less likely to have errors from duplicate information, making your data more reliable. Plus, when your data is structured well, queries run faster, helping you find what you need quickly. Overall, normalization makes your database easier to manage and allows it to grow as your needs change.

Q28. Can you explain the different normal forms in database normalization?

Answer: There are several normal forms, each addressing specific types of redundancy:

• First Normal Form (1NF):Ensures that all columns contain atomic values and that each entry in a column is unique.
• Second Normal Form (2NF):This is achieved when a table is in 1NF, and all non-key attributes are fully functionally dependent on the primary key.
• Third Normal Form (3NF): A table is in 3NF if it is in 2NF and all the attributes are only dependent on the primary key, not on other non-key attributes.

Q29. Explain a deadlock in operating systems and how to resolve it.

What is a Deadlock?

Example

• Imagine two processes, Process A and Process B.
• Process A has resource 1 and needs resource 2.
• Process B has resource 2 and needs resource 1.
• Both are waiting for the other to release their resource, and this creates a deadlock where nothing can happen.

How to Resolve a Deadlock

• There are a few ways to deal with deadlocks. Here are some solutions:

Deadlock Prevention

• The system avoids deadlocks by making sure at least one of the conditions that cause deadlocks doesn’t happen.
• It is like organizing people so that only one person can enter the narrow door at a time to prevent them from getting stuck.

Deadlock Avoidance

• The system checks before allocating resources to ensure a deadlock won’t happen.
• It is like checking if the path is clear before letting someone go through the door so they don’t get blocked.

Deadlock Detection and Recovery

• The system allows deadlocks to happen but monitors for them.
• If a deadlock is detected, it takes action to break the deadlock by killing or restarting some processes.
• It is like letting two people get stuck in the door and then asking one to step back so the other can pass.

Resource Allocation Timeout

• If a process waits too long for a resource, the system might stop it and release its resources so others can continue.
• It is like setting a timer.
• If someone takes too long to get through the door, they have to step aside and try again later.

Q30. Explain the difference between process and thread in operating systems.

Q31. What is the purpose of a system call in an operating system?

Answer: A system call is a programming interface that allows user-level processes to request services from the operating system's kernel. These services can include hardware access, file management, process control, and inter-process communication. System calls provide a controlled interface for processes to interact with the system's resources, ensuring security and stability by preventing unauthorized access to hardware and system resources.

Tech Mahindra HR Interview Questions

Common HR Questions

Q32. Tell me about yourself.

Answer: When answering this question, start with a brief overview of your educational background, followed by your relevant work experience. Highlight key achievements and skills that relate to the job you’re applying for. Finally, mention your current situation and why you’re looking for new opportunities.

Example: "I graduated with a degree in Computer Science from XYZ University. Over the past three years, I've worked as a software developer at ABC Company, where I led several projects focused on developing web applications. One of my key achievements was improving the application performance by 30%. Currently, I'm looking to expand my skills in a dynamic environment like Tech Mahindra, where I can contribute to innovative projects."

Q33. Why do you want to work for Tech Mahindra?

Answer: This question aims to assess your motivation and understanding of the company. Research Tech Mahindra's values, mission, and recent projects. Tailor your answer to reflect how these align with your career goals and values.

Example: "I admire Tech Mahindra's commitment to innovation and its focus on transforming businesses through technology. I believe my background in software development aligns well with your digital transformation projects. I am excited about the opportunity to work in a collaborative environment where I can grow my skills and contribute to impactful solutions."

Q34. What are your strengths and weaknesses?

Answer: When discussing strengths, choose qualities that are relevant to the job and provide examples of how you've applied them. For weaknesses, select an area where you are actively working to improve and explain the steps you're taking to overcome them.

Example: "One of my strengths is my attention to detail, which has helped me catch potential bugs during the development phase, saving time and resources. However, I realize that I can sometimes focus too much on perfection. To address this, I'm learning to prioritize tasks more effectively and set realistic deadlines to ensure I balance quality with efficiency."

If you want to be confident about the HR round, you can go through these Most Commonly Asked HR Interview Questions and Answers.

Tech Mahindra BPO Interview Questions

Q35. How would you handle a difficult customer?

Answer:I’d listen actively to the customer’s concerns, empathize with their situation, and offer a solution that meets their needs. Staying calm and professional helps to resolve most issues smoothly.

Q36. What are your strategies for staying calm under pressure?

Answer:I focus on breathing, listening carefully, and approaching issues with a problem-solving mindset. Staying calm allows me to think clearly and provide better service to customers.

Q37. How do you prioritize tasks during busy periods?

Answer:I prioritize by handling urgent requests first, and I make sure to manage my time well. Using tools like to-do lists or calendars helps me stay organized and efficient.

Q38. How do you ensure high-quality service in every call?

Answer:I stay attentive, listen carefully, and use a clear and friendly tone. Addressing customer issues accurately and showing empathy helps provide a positive experience every time.

Q39. Why do you think customer service is important for Tech Mahindra?

Answer:Customer service is the face of the company. Providing excellent service helps build trust, retain clients, and attract new customers, ultimately contributing to Tech Mahindra’s growth and reputation.

Tech Mahindra Customer Support Associate Interview Questions

Q40. Describe a time you solved a customer’s problem efficiently.

Answer:I once helped a customer who was unable to log into their account. I guided them through password recovery steps, ensured they could access their account, and followed up to make sure they were satisfied.

Q41. How would you handle a situation where you don’t know the solution?

Answer:If I don’t know the answer, I would reassure the customer and inform them that I’ll consult with a colleague or supervisor to provide the best solution possible.

Q42. What strategies do you use to de-escalate an upset customer?

Answer:I stay calm, listen actively, empathize with their situation, and offer solutions that address their concerns. Sometimes, simply letting the customer express themselves can help reduce tension.

Q43. How do you keep up with changes in products or services?

Answer:I stay updated through internal resources, training sessions, and any new announcements. It’s important to be well-informed to provide accurate assistance to customers.

Q44. How do you prioritize customer issues during high-volume times?

Answer:I prioritize based on urgency and complexity. Quick issues are addressed immediately, while more complex ones might need additional follow-up to ensure a quality response.

Tech Mahindra Voice Process Interview Questions

Q45. How would you handle a customer who is upset and difficult to understand?

Answer:I would start by staying calm and maintaining a friendly tone. Listening carefully and acknowledging their concerns helps build trust. I’d ask clarifying questions if needed and reassure the customer that I’m here to help. My priority would be to resolve the issue efficiently while making them feel understood.

Q46. How do you ensure clear and effective communication over the phone?

Answer:To communicate effectively, I speak slowly and clearly and avoid jargon.I make sure to summarize key points for confirmation, ensuring the customer fully understands the information. Additionally, I regularly check in to confirm they’re following along, especially when explaining complex steps.

Q47. How do you handle high call volumes and maintain quality?

Answer:Managing time effectively is crucial. I prioritize by handling each call efficiently without compromising the quality of service. If a customer’s issue is more complex, I offer follow-up options to ensure all customers receive timely assistance.

Q48. What techniques do you use to stay focused during long calls?

Answer:I maintain focus by actively listening, taking notes, and summarizing key points to ensure understanding. This helps me stay engaged and provide accurate responses throughout the call, regardless of its length.

Q49. How would you respond to a customer who feels misunderstood?

Answer:I would apologize for any misunderstanding, clarify their concerns, and actively listen to their issues. Repeating back key points can reassure them that I understand, help rebuild trust, and allow us to find a solution together.

Tech Mahindra Non-Voice Process Interview Questions

Q50. How do you ensure accuracy in your work for non-voice tasks?

Answer:Accuracy is a priority in non-voice tasks. I double-check my work, use tools for grammar and spell-check, and review details carefully before submission. Ensuring accuracy builds trust and reduces errors that could lead to miscommunication.

Q51. Describe a time you handled a high workload and maintained quality.

Answer:In a previous role, I managed an increased workload by organizing tasks based on priority. I used time management techniques to stay efficient and double-checked important work to ensure no drop in quality. This approach helped me stay on top of my responsibilities even during busy periods.

Q52. How would you handle a challenging email from an upset customer?

Answer:I would read the email thoroughly to understand the customer’s concerns, ensuring my response addresses each point clearly. I’d use an empathetic and professional tone, acknowledging their frustration and providing actionable solutions to resolve their issue. Clear, constructive responses often help de-escalate the situation.

Q53. How do you stay organized while handling multiple non-voice requests?

Answer:I stay organized by using tools like task lists and setting priorities for each request. Tracking each task helps me manage multiple requests effectively, ensuring each one is completed accurately and on time.

Q54. What steps do you take to maintain professionalism in written communication?

Answer:I focus on clarity, conciseness, and a polite tone in my messages. Ensuring correct grammar and choosing respectful language helps maintain professionalism and foster positive interactions with customers.

Tech Mahindra .NET Developer Interview Questions

Q55. What is the .NET framework?

Answer:.NET is a software framework developed by Microsoft that supports the building and running of Windows applications. It includes a large class library and provides interoperability for different languages, which is why it’s popular for web, desktop, and mobile applications.

Q56. Explain the concept of MVC architecture.

Answer:MVC stands for Model-View-Controller. It’s an architectural pattern that separates an application into three main components. The Model represents the data, the View displays data to the user, and the Controller handles user input and updates the Model and View accordingly. This separation allows for more organized, maintainable code.

Q57. What is the difference between managed and unmanaged code in .NET?

Answer:Managed code is executed by the .NET runtime (CLR), providing benefits like garbage collection, type safety, and exception handling. Unmanaged code, on the other hand, is executed directly by the OS and lacks these features, requiring manual memory management."

Q58. Explain garbage collection in . NET.

Answer:Garbage collection in .NET is an automated memory management feature that releases memory occupied by objects no longer in use, helping prevent memory leaks and improving application performance.

Q59. What is dependency injection, and why is it useful in .NET?

Answer:Dependency injection is a design pattern that enables objects to be provided with dependencies from an external source rather than creating them internally. It promotes loose coupling, making code more modular and testable.

Conclusion

Tech Mahindra interview questions focus on assessing both technical and soft skills. You can expect questions on programming, data structures, algorithms, and problem-solving, along with situational and behavioral questions, to evaluate your teamwork and communication abilities. The interview process may include technical rounds, HR interviews, and sometimes a group discussion or written test. Preparing for these diverse topics will help you succeed in Tech Mahindra's selection process.