 Also, the lines have been marked with several different combination of color.Ameerpet- LB Nagar metro stretch opened on 24 September 2018.HiTec City to Raidurg, 1.5-kilometre stretch on Corridor Three - Nagole to Raidurg, is opened on 29 November 2019, as it involves construction of 49 pillars and the Raidurg terminal station.