The Circle Line station opened on 17 April 2010, at which point Dhoby Ghaut became the first station in Singapore to be an interchange between three MRT lines. It is currently the only triple-line interchange station on the MRT network; however, with the opening of Stage 3 of the Thomson-East Coast MRT Line in 2021, two other stations, Outram Park and Marina Bay, will also become triple-line interchanges.