I had my online assessment of Amazon on campus in India.
There were mainly 4 sections.

1. Simple code debugging section, in which you have to fix the basic logical errors in the code like brackets in for loop etc.
2. 2 coding questions in 70 minutes, one was based on linked lists (LC medium), and another one was of bridges in graph (LC hard).
3. Psychological test- around 40 questions were given, where we had to answer them *honestly*.
4. General aptitude round. around 25 questions in 40 minutes. The questions in this round were pretty simple, just a bit of observation was required.