About CrackAnalytics

CrackAnalytics is a free, practical interview-preparation resource for data analysts, built and maintained by Mahendra Singh.

Why this site exists

Most interview-prep material online is either paid, outdated, or written from textbook theory rather than real interview experience. CrackAnalytics was built to fix that: every question bank on this site — SQL, Power BI, Tableau, Excel, Business Analyst, HR/Behavioral, Data Science & AI — is organised from actual interview patterns, with full answers, not just one-line hints.

What you'll find here

• 450+ real interview questions with complete, detailed answers, graded Easy / Medium / Hard
• A step-by-step self-introduction and project-explanation framework
• Company-wise question sets from real interviews (TCS, Deloitte, Goldman Sachs, EATON, Virtusa and more)
• A free resource hub of study PDFs, a mock-interview tool, and a live SQL practice lab
• Resume and Naukri profile guidance to help you get more interview calls

Who it's for

Freshers preparing for their first data analyst role, and working professionals (MIS executives, BI developers, analysts) preparing to move up or switch companies.

About the author

Mahendra Singh is a data analytics mentor who has coached candidates through real SQL, Power BI, Tableau and Excel interview rounds. He shares additional content on YouTube, Medium and LinkedIn.

Everything on CrackAnalytics is free, and will always stay free.