We have stats for India, and they're no match: Kolkata Howrah gets about 1M pax per day, Mumbai CST around 670k. Nothing to sneeze at, but still several million (!) less than Shinjuku.
China has numerous airport-sized stations that handle huge volumes of long-distance passengers, but I'm not aware of any single commuter hub remotely the size of Shinjuku. Partly this is because of the economic system: Chinese trains are all state-run and centralized, while a large part of why Shinjuku is so busy is that it's a hub for numerous private railways as well.
China has numerous airport-sized stations that handle huge volumes of long-distance passengers, but I'm not aware of any single commuter hub remotely the size of Shinjuku. Partly this is because of the economic system: Chinese trains are all state-run and centralized, while a large part of why Shinjuku is so busy is that it's a hub for numerous private railways as well.