Usual amazon OA with 3 questions and some behavioural questions. Got email back about interview about a week and a half later. Interview was usual Amazon principles and than a coding question.
It was good and the interviewer was very nice and supportive. He asked 2 dsa based questions which I had to do in a given time limit. Then he asked a little about my cs fundamentals concepts.
3 round coding interviews and a technical interview with questions on search algorithms and OOPs concepts. Binary search, NP hard problems, Traveling salesman problem, etc. Questions on Open GL Java and javascript