First round was a basic aptitude mcq test containing 50 questions. You have a time of 12 minutes and you have to do as much as you can. There was negative marking as well.
Second round was a coding test. You have 3 questions related to arrays and strings. If you pass all the test cases for any of the 3 questions, then you are through with this round. Third round was technical F2F.
Will ask questions regarding whatever you have mentioned in your resume. Make sure to put only those skills in your resume for which you can justify your technical expertise and actual working experience.