I just experienced some very severe bugs when i was registering myself for the same.
I was confused at this step so clicked the FAQ link & there was no returning back. I clicked Home and i was out of my session. Had to login again.
2. I again tried the same page . Gave any year and pressed next .Automatically it took my B-tech percentage as 35 .
4. Taking demo test is like playing with a video game .
So if there are any other issues ,post them before any one faces it