Tech Mahindra Power BI Interview Questions Explained!
Are you preparing for a Tech Mahindra interview or looking to sharpen your Power BI skills? This video breaks down the most frequently asked Power BI interview questions at Tech Mahindra with clear explanations and practical examples. From handling missing values to mastering DAX formulas, we’ve got you covered! 📊✨
What You'll Learn in This Video:
🔧 Handling Missing Values in Power BI:
Techniques using Power Query (Replace Values, Fill Down) and DAX functions (IF and ISBLANK).
📈 Calculated Columns vs. Measures:
Understand the differences, use cases, and best practices for optimizing performance.
🛡️ Row-Level Security (RLS):
Step-by-step guide to implement RLS using DAX filters to secure data access.
📊 Join Operations in Power BI:
How to use Power Query to perform Inner, Left, Right, and Full Outer Joins.
🔄 Creating Relationships in Power BI:
Learn to create and manage table relationships with different cardinalities.
📌 Publishing Reports:
The complete process of publishing a Power BI report to the Power BI Service.
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Rajat is a great Mentor indeed and has helped me in the getting the interview scheduled, fixing the resume and topics to prepare for the interview. This gave me confidence to answer in the interviews and eventually get into analytics domain.
HARJOT SINGH MANIK
Jul 2025
I had the privilege of learning from Rajat Jain, and I can confidently say he’s more than just a Power BI expert. He’s a true mentor. His unique ability to simplify complex concepts and connect technical learning with mindset transformation had a lasting impact on me. His sessions are not just about analytics, but about building confidence, clarity, and purpose in your career. From SQL to DAX to dashboarding, he teaches with patience, clarity, and a genuine passion to help others grow. His holistic approach, including mindfulness practices, was a game-changer for me. I highly recommend Rajat Jain to anyone looking to truly grow, both technically and personally in the data field.
Bhanu Pratap Singh
Jun 2025
I feel incredibly fortunate to have learned under the guidance of Rajat Sir. His deep expertise and ability to simplify complex concepts make every session engaging and easy to understand. What I admire most is his patience — he takes the time to address all my questions thoroughly and always provides practical, real-world examples that help bridge theory with practice. Rajat Sir is not only a highly knowledgeable mentor but also someone who genuinely cares about his students’ growth. Thanks to his encouragement and insightful guidance, I feel much more confident in my skills. I highly recommend Rajat Sir to anyone looking for a truly inspiring and supportive mentor.
I had the privilege of being mentored by Rajat Jain, a truly inspiring person. His ability to simplify complex data concepts and break them down into digestible, real-world applications has had a huge impact on my learning journey.
As a mentor, he has been incredibly generous with his time and knowledge — always patient, thoughtful, and deeply insightful. Whether it was guiding me through SQL logic, complex DAX formulas or providing feedback on dashboards, he brought clarity and confidence to every session.
Beyond work, his YouTube channel has been a goldmine for aspiring analysts. The way he blends storytelling with technical depth is both educational and motivating. His tutorials, career guidance videos, mockup interview videos reflect the same passion and clarity he brings in person.
I wholeheartedly recommend Rajat Jain to anyone looking to work with a data professional who is not only technically brilliant but also genuinely invested in the growth of others.
It's a pleasure to connect with Rajat bhaiya. He helped me alot and guide me very well and clear all my doubts ❤️.