Section 2(1)(i) in The Delhi Metro Railway (Operation And Maintenance) Act, 2002
(i)"metro railway" means rail-guided mass rapid transit system having dedicated right-of-way, with steel wheel or rubber-tyred wheel coaches, but excluding tramways, for carriage of passengers, and includes-(A)all land within the boundary marks indicating the limits of the land appurtenant to a metro railway,(B)all rails tracks, sidings, yards or branches worked over for the purposes of, or in connection with, a metro railway,(C)all stations, offices, ventilation shafts and ducts, warehouses, workshops, manufactories, fixed plants and machineries, sheds, depots and other works constructed for the purpose of, or in connection with, a metro railway;