220. If the service personnel dissatisfied with the penalty imposed in departmental enquiry or any order and decision, he may submit an appeal as prescribed in Form (12) to the head who is superior to the disciplinary authority who imposed the original penalty or passed the order or made decision within six months from the date on which the order is received. The appeal submitted after limited period shall not ordinarily be considered. However, the time limit for an appeal may be relaxed if the appellant is able to summit a sufficient reason for the delay. The appeal may be accepted and tried.