Star method interview process. Amazon explains it through email. Easy method. All about your experience and spontaneity. Errors and problems you faced and how did you deal with them. How was your experience with your teammates.
I applied online. The process took 1 day. I interviewed at Amazon (Hyderābād) in Nov 2016
Interview
There were 3 rounds,
1) Extempore
2) analytic written
3) Operations
good english communication and analytical skills will easily fetch you a job. Operation round is bit though , they check your decision making skills, how you engage people etc.
Be confident and prepare resume such that you can explain it. Copying can be a disaster.Always try to engage the HR in your conversation.