  The effects of gluon radiation by charm quarks on the transport coefficients
{\it e.g.} drag, longitudinal and transverse diffusion and shear viscosity have
been studied within the ambit of perturbative quantum chromodynamics (pQCD) and
kinetic theory. We found that while the soft gluon radiation has substantial
effects on the transport coefficients of the charm quarks in the quark gluon
plasma its effects on the equilibrium distribution function is insignificant.
