It's true that the number of applicants to ND has increased significantly, mainly because of ND's breakthrough into the Nation's top 30 since 2002 and the society's re-focus on "ethics" after series of corporate scandals. Given the program's very small size (130 admits last year), competetion can be very tough, especially for international students. So don't get discouraged by ND'd ding. It may not be an indicator of incompetency at all. Just remember how small the program is. Cheer on and keep chasing your dream.
I was interviewed on Feb.16th. They said the result should come out on March 08th. So do not worry about it. Just be patient a little more. Good luck to all of us.