It was a three month long process. I was asked by my mentor to review a lot of research papers and send him over the review comments. In addition, since the research project I worked on was primarily based on my brainchild idea, I had to convince him that the idea should work in reality and I can demonstrate a proof of concept by the end of the internship.

I spent hours preparing for the second interview but they cancelled an hour before. It appears they were never serious about hiring anyone or already had a candidate and were just going through the motions.