There is Nusajaya, a place to learn to fly microlight, that will
get you a RPPL, which you can later upgrade to a PPL on a GA
aircraft.
Then there is Senai Airport for GA aircraft flying, you can get a
PPL there.
look up the following website.
http://www.frasflyingclub.com.sg
The club is owned by Gucharan Singh, a Singaporean.