Thanks for the ID Mike. I was not careful in separating the seeds based on locules. Now, I have 30 seeds and am going to try germinating all of them.
I have an uncle who's been growing various including non native fruit trees in his garden, like avocado, longan, lychee, star fruit, dragon fruit etc. The list can go on. He mentioned that he had tried to grow salak in the past but was unsuccessful. So, it's a bit of a challenge for me to try to germinate them.