Rule 21 of the Electoral (Applications, Appeals and Petitions) Rules, 1995 is peremptory and requires that: (1) the full names and addresses of all persons alleged to have committed corrupt or illegal practices, and (2) the exact relief sought by the petitioner, must appear on the face of the petition itself and not merely in supporting affidavits, annexures, or draft orders. Failure to comply with these requirements renders the petition fatally defective and of no force and effect. The substantial compliance doctrine does not apply to the mandatory requirements of Rule 21. In electoral petitions, "respondent" as defined in s 166 of the Electoral Act means only the winning candidate whose election is challenged, and other alleged perpetrators of electoral malpractices cannot be cited as respondents but are dealt with under s 158 and Rule 29.