World's Busiest RailwaySeason 12015 · 4 episodesEpisodes1Episode 1Documentary series exploring the world's busiest railway. From their base at the Chhatrapati Shivaji Terminus, the team try commuting Mumbai-style.2Episode 2Documentary series exploring the world's busiest railway. This episode examines the role the Chhatrapati Shivaji Terminus in Mumbai plays in long-distance travel across India.3Episode 3Documentary series exploring the world's busiest railway. A look behind the scenes to reveal the hidden areas of the Chhatrapati Shivaji Terminus station unseen by commuters.4Episode 4Documentary series. This final episode considers the challenges faced by the Chhatrapati Shivaji Terminus in Mumbai and asks what the future holds.