Dan, Anita and Robert try commuting Mumbai-style on the world's busiest commuter trains.

They examine the role the station plays in long distance travel across India.

Behind the scenes to reveal the hidden areas of the station unseen by commuters.

Considering the future of the station and its challenges; Anita discusses the high fatality rate with the railway's head of safety; Dan meets two eyewitnesses to 2008's terror attacks that claimed the lives of 52 people at the station; final episode.