The present work provides an analysis of the hydro-magnetic Nanofluid boundary layer flow
over a rotating disk in a porous medium with a constant velocity in the presence of hall
current and thermal radiation. The governing partial differential equations system that
describes the problem is converted to a system of ordinary differential equations by the
similarity transformation method, which solved analytically using Optimal Homotopy
Asymptotic Method (OHAM). The velocity profiles and temperature profiles of the boundary
layer are plotted and investigated in details. Moreover, the surface skin friction, rate of heat
transfer are deduced and explained in details.