Gujarat High Court Civil Manual (subordinate court practice), 1960
(i) When any person desires to make any application to the High Court in its Civil or Criminal Jurisdiction, and to support the same by an affidavit or statement on solemn affirmation, any Court or Magistrate or other officer or person duly appointed shall, on application, take such affidavit or statement on solemn affirmation, and on payment by an affixed stamp of such fee as may be legally prescribed authenticate the same by signature with endorsement stating clearly that the affidavit was made on oath or solemn affirmation in the presence of the Court or the officer attesting it. (ii) An affidavit intended by a person to be filed in any proceeding before the High Court may be sworn before any Court or Magistrate or before a person duly empowered in that behalf who shall, if the appropriate court-fees thereon and other legal fees have been paid authenticate it, stating clearly that the affidavit was made on oath or affirmation in the presence of the person authenticating it.