it consists of two rounds then they will give you the notification that you have been selected and will gather all your documents and then after 1 week they will say we are unable to get approvals from management team and after that they will not respond to any call or messages

I have 4.10 yrs exp. There is one- to -one process. One person is taking interview with lot of papers in hand. All questions are based on C++, OOPS, design pattern and C11. The interview process was 1 hour duration. First round covers almost all topics.