What should a writ affidavit against unfair quasi-judicial proceedings contain?

A lower quasi-judicial body dismissed a petition mid-way of a trial without conducting a fair hearing (non-conduction of a adjourned cross-examination mentioned on record in deposition etc.). The petitioner wishes to file a Writ Petition invoking the supervisory jurisdiction of the High Court to quash the impugned order and redirect the lower quasi-judicial body to conduct and complete the fair trial. In the Writ Affidavit that goes along witht the Writ Petition, is it enough if we detail about the grounds ie., the irregularities faced before the quasi-judicial body and the subsequent prayer, or is it required to go into the details of the previous cause of action upon which the complaint was raised before the quasi-judicial body in first place?