ditzy SG NEL to dhoby ghaut and take the NS line. Take any bus that goes along upp serangoon rd then change to 72 right after hougang ave 3.
SingaporeMacross SG 13 goes to YCK interchange, you can walk to NYP from there. 72, take from Hougang Interchange bus stop, goes direct to YCK. Those who study at Engine, IT, SCL, Design can stop at the side bridge of NYP.
TIB888M SG take 142 to the MRT then cross the road to the side with the bread shop.. there take 13 until yio chu kang interchange.. total about 45mins if smooth.. alternatively can save money and walk out from potong pasir.. its quite small unless you stay blk 113-120 there which is the furthest.. don't bother about other buses.. 13's the fastest way..