Mumbai's first and only underground metro network, Line-3, also known as the Bandra-Colaba-SEEPZ Line, is now 76.6% complete, according to the Mumbai Metro Rail Corporation Limited (MMRCL). "The first phase of the project between Aarey Colony and BKC will be operational by December 2023. The Aarey car shed will also be operational by then," said SK Gupta, Director (Projects), MMRCL.