High Quality Content by WIKIPEDIA articles! The Choa Chu Kang MRT/LRT Station (NS4/BP1) is an interchange station serving the Choa Chu Kang area of Singapore. It is part of the North South MRT Line and it is also the terminus of the Bukit Panjang LRT Line. The station is accompanied by the Choa Chu Kang Bus Interchange and the Lot One Shoppers` Mall, which serves as a major shopping centre for residents living in Choa Chu Kang.