Is Central world plazza in bangkok near MBK shopping center?

yes, its about 10-15 minute walk on the skywalk. I did it once. haha Easy way to do it, is to walk to Siam Discovery, walk through the mall to the back and it exits towards Central World Plaza. You can take the skytrain to Siam square but it is still another 5 minute or more walk to the walkway to Central World Plaza.