Had to contact a friend in the company to submit my resume to make sure it got to the right people. Flew me out to Greenville South Carolina. Gave a tour of the manufacturing plant (very cool, huge machines). Had to give a presentation on a technical project i had completed in the past, they asked a couple of questions, but since it was about biology and software it wasn't really in any of the interviewers field so they didn't have any tough questions. Had a behavioral interview with some HR people that was pretty standard... "tell me about a time when you had to admit you were wrong...." type questions. The a technical interview with some engineers. They asked some pretty tough questions but not like to go solve on a white board, more to like write out your thought process and how you might go about solving the problem. But really not THAT intense. After the interview i got called by 5 different engineers within the company to ask me some general questions about my interests. I think this was because my background was chemical engineering and that isn't the most common major as the company does a lot of mechanical design things. After getting the offer ( a week or two after my senior year began) I accepted and then had to take a drug test (hair sample).

I had a chance to participate through campus placements at IIT Kharagpur. There are 3 stages written test. technical interview, revolves majorly around the projects you have done and some basic knowledge of gas turbine. HR/ technical, it happened just 5 mins after the first one, majorly checking passion towards your domain.