  The propagation of heavy quarks (HQs) in a medium was quite often modeled by
the Fokker-Plank (FP) equation. Since the transport coefficients, related to
drag and diffusion processes are the main ingredients in the FP equation, the
evolution of HQs is thus effectively controlled by them. At the initial stage
of the relativistic heavy ion collisions, asymptotic weak-coupling causes the
free-streaming motions of partons in the beam direction and the expansion in
transverse directions are almost frozen, hence an anisotropy in the momentum
space sets in. Since HQs are too produced in the same time therefore the study
of the effect of momentum anisotropy on the drag and diffusion coefficients
becomes advertently desirable. In this article we have thus studied the drag
and diffusion of HQs in the anisotropic medium and found that the presence of
the anisotropy reduces both drag and diffusion coefficients. In addition, the
anisotropy introduces an angular dependence to both the drag and diffusion
coefficients, as a result both coefficients get inflated when the partons are
moving transverse to the direction of anisotropy than parallel to the direction
of anisotropy.
