In the initial round they will be asking you to solve a digital circuit, 2 coding problems in c, some mathematics questions.
Then they will be taking one to one interview for few minutes and ask you to explain the questions and how you solved them
If your performance is good then you will be selected for next round which will have coding and digital questions which are based on previous questions only but this time instead of writing the answers we need to answer the questions asked by the interviewer
If you clear this round then there will be final HR round