Prepare for all the core CS fundamentals like DSA, DBMS+SQL, CN and more, with some good projects using tech stack like MERN or Java Ecosystem, which solve some real world problem in any manner and project should be deployed and running at the time of interview.

first there was a resume screening after that students were shortlisted, after shortlisting there was a written exam and after written exam there was interview scheduled who clears written exam.