Which broad branch of court proceedings is the principal subject of the Code of Civil Procedure, 1908?

The Code consolidates and amends laws relating to procedure of courts of civil judicature, so its subject is "Civil proceedings generally", not "Criminal proceedings generally". Family litigation may use CPC rules through its applicable framework but is not the exclusive subject, ruling out "Family disputes alone, excluding other civil litigation", and section 141 expressly excludes Article 226 proceedings, ruling out "Constitutional writ proceedings alone, excluding ordinary civil suits".