why don't you just contact the recruiting team in Jakarta? The requirements differ across offices, and also within offices, depending on the profile of the candidate (e.g., experienced hires oftentimes do not need to do the PST, even if it is commen practice for fresh graduates).
So what I would expect here is that you think like a consultant: Where will you get the most valid information from? I think the answer is clear - go to the primary source! The recruiting team will be happy to clarify the entire process for you!