I'm not a JPA scholar for undergraduate studies, but because i did dentistry, we had to serve 3 years compulsory service in the govt.
While i was in service I applied for Latihan Dalam Perkhidmatan to do my Masters in Oral Surgery. When I go back, I'm bonded 7 years, which is pretty reasonable as the cost for my studies here will come up to a cool RM1million. How to payback??!?!?

So yes, there are still opportunities for postgraduate studies while in govt service. It's not as bad as people make it out to be.

Good luck with your choices.