Round 1: Online Aptitude + Technical Test The test consisted of 20 aptitude questions and 2 SQL-based coding questions. Topics covered: joins, aggregations, and writing efficient queries. One SQL question was to find the second highest salary from an employee table without using LIMIT. Round 2: Technical Interview (Virtual) The interviewer started with a quick introduction and asked me to explain a project I had worked on. I explained my project on predictive analytics using machine learning, where I used Python, Pandas, and scikit-learn. Then I was asked: Difference between primary key and unique key in SQL. Write a query to fetch duplicate rows from a table. Explain normalization and why it is important. Some scenario-based questions on data cleaning (e.g., handling missing values). Round 3: HR Round The HR focused more on cultural fit and communication. Questions included: "Why do you want to join XYZ?" "Where do you see yourself in 5 years?" "Tell me about a time you worked in a team and resolved a conflict."