The first round tests your aptitude and technical knowledge so you'll be given an MCQ exam for the same. Next round will require you to write code (or pseudo code) for the problem statements provided (Generally 3 problem statements). The next round will be a technical interview where they would discuss & question your written coding round's code/pseudo code. They might also ask questions related to the technologies you have mentioned in your resume and the language you wrote your code in. The last round is an HR round which would just check if you are confident enough and can communicate well.