can appellate authority issue show cause notice under section 73 or 74 as per appeal section 107(11) - Goods and Services Tax - GST

If the appellate authority not satisfied with the adjudication order, then he may issue show cause notice under section 73 or 74 . My question is that here shall the appellate authority follow the time limit as specified said sections and shall they give personal hearing as enumerated in section 75(4) , and shall they give 30 days time as law stated in section 73(8) . Also I have another query is that the cross exmanination is embeded in section 107 ?, like investigation against supplier for ITC verification purpose.