Manager (Advance)
901 Points
Joined March 2008
I don't believe that.
The reason is that how you can measure toughness? See, its personal matter, one thing may be difficult to other but easy to you and vice versa.
Btw, I don't think C.A. is toughest from any point of view. Although, it may be the longest course in the world, thanks to an extraordinary training period.