https://www.globalrailwayreview.com/alstom-trains-and-cbtc-signalling-enter-service-on-indore-metros-next-phase/2136403.article Global Railway Review en 2026-09-07T14:07:00+01:00 Alstom trains and CBTC signalling enter service on Indore Metro’s next phase Signalling, train control & communications