Namma Metro’s Pink Line opened to the public on Saturday with a 6 am first train; Minister Krishna Byre Gowda welcomed the first riders with pink roses. Passengers and officials at a Namma Metro station on the first day of Pink Line public service. Bengaluru: Namma Metro’s Pink Line opened for public service on Saturday, with Minister Krishna Byre Gowda going to a station early in the morning to welcome the first.