I applied through LinkedIn.
First phase was a written test. In the test, there was Problem Solving, OOP, Database, DSA, Networking related questions.
Second phase was a technical interview. In the interview, questions was asked from the university courses I have completed. DSA, OOP, Database, ML, Operating System, Networking, Problem Solving questions were asked.
Third phase was CTO Interview. It was kind of a behavioral interview. I got offer after the interview.