Pendency of proceedings means the forum can still make orders; appeals continue pendency but writs do not. 'Pending' describes a proceeding that continues from commencement until conclusion while the tribunal can make orders on matters in issue. Appeals and revisions are continuations of the original suit and thus maintain pendency because higher authorities can decide the merits and supersede earlier orders. Writ petitions, being independent remedies, do not render the originating suit pending before the constitutional forum.