I applied through university. The process took 2 days. I interviewed at Amazon (Chennai) in July 2016
Interview
The first round consisted of 20 mcqs and 2 codes
20 mcqs were based on technical aptitude on subjects - DBMS, OS, C, C++, Java and General Maths
2 codes were - Spiral traversal of a matrix, Print all possible words from phone digits
I didn't clear the first round because I got stuck in the spiral order.