Hmm, here in America I heard they contact us by email on when the testing and interviewing is which is generally around the first week of August for us. So I suggest to ask your embassy for a general timeline of the application process.
For example, for my area it's:
July- Applications due
August- Testing and Interviews
February- Scholarship recipients notified
March- Accommodation, plane ticket, etc. sorted out
April- Depart to Japan
I believe that's the general timeline for my area. So just look on your embassy's website/call and ask how the process usually goes.Good luck! Hope to see you in Japan next April