This　investigation　provides　a　numerical　analysis　of　electro-magneto-hydrodynamic　(EMHD)　nanofluid　flows　past　a　Riga　pattern　embedded　horizontally　in　a　Darcy-Forchheimer　porous　medium.　An　advanced　Buongiorno＇s　nanofluid　approach　is　linked　physically　with　Cattaneo-Christov＇s　physical　point　of　view　and　generalized　Fick＇s　law　to　formulate　a　more　realistic　non-homogeneous　flow　model,　in　which　the　convective　heating　and　zero　mass　flux　are　chosen　as　suitable　boundary　conditions.　In　the　framework　of　the　boundary　layer　approximations,　the　governing　partial　differential　equations　(PDEs)　are　converted　into　ordinary　differential　equations　(ODEs)　via　suitable　similarity　transformations,　which　are　solved　thereafter　using　a　robust　numerical　procedure.　Indeed,　the　adopted　conservative　laws　describe　reliably　the　foremost　features　of　EMHD　convective　nanofluid　flows,　in　which　Darcy-Forchheimer＇s　porous　forces　show　a　noticeable　impact　on　the　momentum　boundary　layer　at　a　large　scale.　Besides,　it　is　remarked　that　Darcy-Forchheimer＇s　and　Lorentz＇s　forces　strengthen　the　resulting　frictional　factor　at　the　Riga　surface.　Furthermore,　a　significant　enhancement　in　the　wall　heat　transfer　rate　can　be　achieved　practically　by　adjusting　adequately　the　convective　heating　process　and　the　electromagnetic　planar　support.