India may have sought Japanese expertise in building the Mumbai-Ahmedabad bullet train, but when it comes to managing operations of the suburban railway, India seems to be the expert. In the country to strengthen bilateral ties between the two nations, Japan's transport minister Keiichi Ishii admitted that he was dumbstruck by the volume of local trains that chug along the suburban railway system and the number of commuters the state railways ferries on a daily basis.

Japan's transport minister Keiichi Ishii (C) during a walk down the CSMT building, along with Central Railway officials on Tuesday