Generally you have to approach the HC for quash under S.482..
Alternatively attempt the following:
iT IS NOT CLEAR IF YOUR FATHER HAS MADE THE APPEARANCE OR NOT ??
Your father (accused) should bring to the notice of the Hon court that neither he signed the cheque nor the account belongs to him ...and this trial shall be abuse of process of law..
Court may dismiss this application citing that court does not have power to discharge at this stage once cognizance is taken, then you must state that the reference can be sent to higher court for dismissal as the trial will not result into anything and why he should spend money and time by approaching HC.