The process took 2 days. I interviewed at Cognizant (Teaneck, NJ) in Dec 2010
Interview
The first on-campus interview is a simple 1:1 interview. The second round, they fly you to Teaneck NJ to interview have two more 1:1 interviews with other consultants, and finally 1 1:1 interview with a manager. The interviews are mostly behavioral with typical questions on leadership and teamwork. There is also one technical interview, however due to my degree (mechanical engineering) I was exempt from the technical questions. I believe this is because they involve coding. There is a presentation about Cognizant and they pay for your food.
Interview questions [1]
Question 1
Tell me about a time you were proactive in accomplishing a task.