Totally a Java based interview. Interviews are similar to any service based company, not think of it as a product based interview rounds.
First round was on Java coding round to implement cab booking web application. In the second round was purely algorithmic round. In the 3rd round they asked questions from problem solving and system design. Then one more round on Java and Spring! then hiring manager round.
Service based interview questions, so we can conceive the type of workers in that team. Since I had a similar experience with my previous company, I rejected it. Be think about this in mind on accepting the offer.