I looked around and I'm able to take the circle line from Bishan to Serangoon then take Northeast Line to Senkang. Correct?
take 156 oso can
from the bus-stop opposite the mrt station
(cross the overhead bridge)
goes into sengkang interchange
or u can take the circle line from bishan to serangoon
then go to NE line and take to sengkang
cross overhead bridge at bishan mrt. take 156. journey time about 35 mins.
if bo ximi lang oni 25 mins
recommended to take MRT
156 is a direct ride there, no need to transfer