Just clarify: Do you mean Ngee Ann Polytechnic (NP) or Nanyang
Polytechnic (NYP)?
If you're going from Ngee Ann, take 171 from Dunearn Road. Bus ride
is about 35mins.
If you're going from Nanyang, take MRT and alight at City Hall,
then cut across Raffles City Shopping Centre to reach Raffles
Hotel. Train ride takes about 30 min.