The Orange Line, also known as the Abdul Sattar Edhi Line, is a 3.88 km (2.4 mi) bus rapid transit line of the Karachi Metrobus in Karachi, Sindh, Pakistan. It is the smallest of the five Metrobus lines in the city. The current daily ridership is 3,000. The route goes from Board Office to the TMO Office (Orangi Town). It was inaugurated on 10 September 2022