The construction work on the three approved corridors, out of the total six corridors of Delhi Metro Phase IV will begin soon. The remainning three corridors are likely to get approved by the Centre after the elections. The project completion is targeted by the year 2025. The three approved corridors covers a distance of around 61.67 km. These corridors will have 46 stations, out of which 29 stations will be over ground while 17 stations will be underground.