Shinjuku

Shinjuku station in Japan is the biggest in Asia although you would expect the Chinese to try to beat that at some point further down the line. This station apparently services more than 3 million people every single day, so it has to be massive in order to cope with these crowds. This station has 36 platforms, but 200 exits and it really is on such a huge scale.
This Post Belongs To Largest train stations in the world