I was approached directly by Amazon Bangalore recruiter. I was asked to come down to interview venue for face-to-face rounds. First round was design discussion. I understood the problem and presented a UML diagram that depicts the pattern that would address the solution to interviewer's problem. Discussion went on Database management system and specifically few schema terms used in DB. I told the interviewer about my unfamiliarity on those terms but i don't understand why i was stressed on those points so long. He then asked another much simpler design problem which i answered and was done with my 1st round. Second round was problem solving round where we need to write bug free prod quality code. Four questions were asked in this round and i had written down solution to all the problems. These problem were taken straight from geeksforgeek and other sites. For two problem i had told the interviewer, beforehand, that i knew the solution but i was still asked to write down the code. After this i was asked to leave, that came totally by surprise. I was polite at all the time and had answered all their questions. I had mailed them after a week and asked what went wrong. After 3 weeks, i received a mail bidding me good luck for my job hunt. No reason was specified. I am not naive to underestimate or wrongly judge the situation in-hand. I have decided not to give Amazon interview ever again. I am not up for a mind less process.