It is just a direct face to face interview, where you will be talking to 4-5 employees one after the other. Generally, the first 2-3 persons you will be talking to are technical staff and the last one would test your behavior.

Had a phone screening interview with basic OOPs principled and Software design. Followed by onsite coding and behavioral interview with senior software developers and developer managers. Prepare your coding challenge well. 80% of questions will be around the challenge. They will ask other ways of doing it