The Kolkata Metro started operating on 24 October 1984 and is run by Metro Railway and KMRC.
The Delhi Metro began service on 24 December 2002 and is operated by DMRC.
The Bangalore Metro started on 20 October 2011 and is managed by BMRCL.
The Mumbai Metro opened on 8 June 2014 and is operated by MMOPL, MMRC, and MMMOCL.
The Jaipur Metro started on 3 June 2015 and is run by JMRC.
The Chennai Metro began operations on 29 June 2015 and is managed by CMRL.
The Lucknow Metro started on 6 September 2016 and is operated by UPMRCL.