Indian judicial system assumes the suspect as innocent until proven guilty. It's only during the court trial that the person holding the office might be temporarily suspended until convicted in the case. Hanuman Singh was acquitted in the Lower Court.
After a person loses a trial in the Lower Court he is entitled to take the case in Upper Courts provided the court allows him to do so. So the case was taken to higher authorities at that very time, but the hearing is scheduled now.
I'm not surprised it does take time. Since by the judgement of the Lower Court, HS was found innocent, he was immediately reinstated with all his duties. Now that the case is reopened, maybe, he will be temporarily suspended.
And hey, I'm Mahi btw. :)