The steady-state MHD (Magnetohydrodynamics) incompressible free convective boundary layer stream over an inclined surface, moving continuously in the existence of heat along with mass transfer is studied. The interpretation of Diffusion-thermo, Viscous dissipation, and Thermophoresis has been emphasized. To decompose the heat and mass transport, a two-dimensional steady flow model formed by appurtenant boundary conditions is created. The equations that govern the system are solved using numerical techniques, specifically the bvp4c solver in MATLAB, with appropriate boundary conditions. Numerical constellations are also plotted to validate the results and the acquired relevant parameters are effectively analysed. This incorporation expands on prior investigations and enhances our comprehension of these intricate interrelations. Adequate validation has been performed against previously published articles and positive agreement has been observed. The Nusselt number and temperature profile decrease with increasing Dufour number, while a noticeable change in behaviour is observed in the concentration profile and Sherwood number. The research is significant as it provides insights into improving heat and mass transfer mechanisms, which are essential in a variety of engineering challenges, including Chemical Industries, Nuclear Reactors, and Metallurgical Industries. The findings from the study of MHD flow through inclined surfaces with diffusion-thermo and viscous dissipation effects have broad applicability and implications in various engineering fields. This research has the potential to significantly impact process optimization, control flow patterns in metallurgical furnaces, enhance heat transfer, and improve energy efficiency. It also contributes to the design and analysis of liquid metal-cooled nuclear reactors.