In sum, I hold firmly that where a judgment of this court or an order thereof is adjudged a nullity, a party affected thereby is entitled to have it set aside ex debito justitiae. The court has inherent jurisdiction or power to set aside its own order or decision made without jurisdiction if such order or decision is in fact a nullity or was obtained by fraud or if the court was misled into granting same by concealing some vital information or facts. See Igwe v. Kalu (supra), Vulcan Gases Ltd v. G.F. Ind. AC (2001) 9 NWLR (pt.719) 610 at 644 – 645 paras H – A.
— J.I. Okoro JSC. Citec v. Francis (SC.116/2011, 21 February 2014)