We analyzed the combined influence of dissipation, variable viscosity effect, thermo-diffusion and Hall current on the hydromagnetic nonlinear convective heat and mass transfer flow past a stretching surface. The governing equations have been solved by employing fifth-order Runge-Kutta-Fehlberg method along with shooting technique. The effects of various parameters on the velocity, temperature and concentration as well as on the local skin-friction coefficient, local Nusselt number and local Sherwood number are presented graphically and discussed.