Alstom to supply 39 driverless trains for Mumbai Metro Line 4, India April 6, 2026 | Asia Pacific News, News Alstom will supply 39 driverless trainsets for the Mumbai Metro Line 4 project, marking the introduction of unattended train operations on the corridor. The contract includes the delivery of 234 metro... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password