There are around 2 rounds of interview. First where 2 interviewer will be there both them will ask questions from basics to advance , top is to prepare well in 1 language either C ,C++ or Python and then have relevant projects or internship experience. They will like to see your approach to a problem rather than the solution. The second round is more of a managerial round where they will be checking your background and communication. Overall buckle up your basics , be confident and honest most importantly.