Round 1: The first round had 40 multiple-choice questions (MCQs) covering different areas like aptitude, logic, and technical topics. The questions about math and logic were more about clever thinking than memorizing formulas. It's a good idea to practice problem-solving on websites like GeeksforGeeks and Indiabix to build confidence. The technical questions focused on predicting outcomes in code and object-oriented programming concepts. Round 2 (First Technical Interview): This round lasted 1.5 hours. The interviewer began by asking about me, my projects, and my internship experience. Then, they asked various questions about object-oriented programming, like the four main principles, polymorphism, abstraction, virtual functions, abstract classes, and interfaces. After that, they moved to theoretical questions about data structures and algorithms (trees, linked lists, stacks) and then some coding questions, mainly related to strings. Round 3 (Second Technical Interview): A 45-minute round with two interviewers. They started with introductions and asked about the database I used in my projects. They inquired about the differences between SQL and NoSQL databases and their typical applications. Then came questions about more advanced data structures like trees, binary search trees, and self-balancing trees. They presented a scenario where a sorted list needed to be maintained efficiently and asked which data structure I'd use for this. Round 4 (Third Technical Interview): A 1.75-hour round with two interviewers. They began with introductions and discussed my projects, including authentication. Then, they asked challenging questions about object-oriented programming, operating systems (deadlocks, scheduling), and more theoretical and coding questions about data structures. I was also given puzzles to solve. Round 5 (HR Round): This interview began by discussing something not on my resume. Then, the interviewer asked typical HR questions like how I fit into the company culture, my reasons for choosing the company, and why they should hire me. We also talked about the company's office. The interview ended positively, and I received the job offer. Overall, it was crucial to know myself well, stay calm, and answer respectfully throughout all the rounds.