The first interview is more of a screening interview where they ask you very general questions. Honestly, I'd say don't stress about them and just do the practice questions. It should be easy. The questions are intuitive. I managed to get through this part relatively easily but the next round is difficult. As an Electrical Engineer, I found this technical round really difficult. It doesn't check a basic understanding of your coding skills but goes into this high school exam level techincal test where you have to choose between MATLAB, Math and a coding language (Java,C/C++ or Python I believe). The questions are just what everyone else is saying on this site. TRUST THEM. But if you want to really consider this company, be ready to be a little bit more intimately familiar with C/C++ and MATLAB itself.

There were three phases for recruiting procedures. The first stage was a brief and relaxing conversation, the second stage was about technical things and hiring manager asked several questions in the third stage.