Delhi Metro's Pink Line services were halted after it suffered technical glitch. The train was stranded at South Campus Station but the service have resumed now. The eight-km-long Pink Line was inaugurated on March 14, taking the operational span of Delhi Metro Rail Corporation (DMRC) to 252 km. The Pink Line, also known as the Ring Road Line, is an almost circular line that passes alongside the busy Ring Road in the national capital in a U-shaped pattern that witnessed a massive traffic jam every day. It is also the longest Metro line of the country.