Normally the parties file only minimum copies (2 for judges) initially.
Only when notice is issued, then they used to supply adequate number of copies to be served on all the Respondents.
Therefore since the Petition has been dismissed at the admission stage itself, the Registry/HC Section concerned may not have copies to make available to you.
Further just because you have been made a party, does not mean that you will get a copy, unless you had filed a Vakalatnama and entered appearance.
As the matter has been dismissed, at this stage, your vakalatnama would not be accepted.
Therefore, it will be difficult to get a copy of 482 petition.
However, suffice it for you to know that based on the case pending in the lower court, the petition u/s 482 has been filed for quashing the proceedings.
In any case, Check up with the High Court, by indicating the Case No. Year and title of the case.