The Mumbai Metro Rail Corporation Limited (MMRCL) on Friday said it will roll out the first phase of Aarey-Bandra Kurla Complex (BKC) line of the Colaba-Bandra-SEEPZ Metro-3 corridor in 2023. In a release, the MMRCL said it received all eight coaches of the metro train, manufactured in the Alstom Plant in Sri City of Andhra Pradesh on Thursday, and these will undergo mandatory tests on a 5-km stretch between the ramp at Sariput Nagar and Sahar.