Welp, with 311/312 retirement, it seems like the KNS are at high risk of retirement. lets get back to the video. This is 335/336, the last 4 remainings C751B’s, which is supposed to serve NSL for the whole day, from Novena to Toa Payoh! The C151B at Toa Payoh was the 3rd or 2nd last train to Marina South pier and will withdraw into BSD, for 335/336, it will withdraw into Ulu Pandan Train Depot.
The KNS was maybe the 5th last train to Jurong East and will head into UPD for cleaning and maintenance to prepare it for the next dah!