Hight Court will look into only technical defects if any in the case which have been overlooked by trial court. If the Trial Court has grossly erred in passing maintenance, it might dismiss the mainteannce plea. But anyhow orders of maintenance being interim in nature, HC wont meddle with it. 99% your appeal to dismiss maintenance plea will be dismissed. HC will look into every aspect of the case including DIR. The case will go on in Trial Court and final verdict will be passed based on findings of whtehr domestic violence (refer PWDVA act 2005 for definition of DV which has been amended multiple times via precedents of Hon SC) occured or not.
This case will squeeze the life out of you and the co-accused. Go for settlement, pay the wife and take mutual divorce or else there are lot of people who fight entire life like above replier , running behind justice. Justice will be delivered in a decade or so going by the pace of Indian Courts. Be aware.