Inderlok (formerly called Trinagar) is a Delhi Metro station located in Delhi, on the Red and Green Lines. It is a transfer station between the Red Line and the Green Line. The station is the terminal for the Green Line to Brigadier Hoshiyar Singh metro station, which is located in Bahadurgarh district of Haryana. One interesting thing about the Inderlok station is that the Green Line meets the Red Line perpendicularly here, unlike all the other interchange stations. This design choice ended the possibility of extending the line in the future (in this direction). From Wikipedia