dear student,
You didn't mentioned the details about which course, university or board you are are asking for. It completely depends upon the conducting body when they will release the withheld result.
Generally it takes atleast about 15 days and maximum of 1.5 months to declare the withheld result because they have their own reasons to withheld your result.
Hope it Helps!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile