It will not be announced, you will get a letter regarding the same. I suggest not to wait just like that. Contact the ICAI and ask for revaluation result if you haven't received it.
When I call icai then 99% chance that they don't receive call. nd 1% after receive they say that ...u will get mail when revaluation result out. may be before exam or may be after exam.
Put up a mail marking top members from icai including the dept ppl. you will get a proper respond. further i suggest u to concentrate on exams. you will clear. my best wishes.