Jan 20, 2023 MMRCL to launch first phase of Metro-3 corridor in 2023 The Mumbai Metro Rail Corporation (MMRCL) will roll out the first phase of Aarey-Bandra Kurla Complex (BKC) line of the Colaba-Bandra-SEEPZ Metro-3 corridor in 2023. The MMRCL said it received all eight coaches of the metro train, manufactured in the Alstom Plant in Sri City of Andhra Pradesh.