A fresh political and administrative push has revived plans to run six-coach trains on Mumbai Metro Blue Line 1 (Versova–Andheri–Ghatkopar), a long-discussed upgrade from the present four-coach configuration. The coming Brihanmumbai Municipal Corporation (BMC) election might act as a political trigger for the much-needed push.

The move aims to ease rush-hour crowding and boost carrying capacity significantly, but sources and stakeholders acknowledge the proposal remains tangled in disputes, financing questions, and operational complexity.