  We investigate the role of radiative driving of shock ejected bipolar
outflows from advective accretion discs in a self consistent manner. Radiations
from the inner disc affects the subsonic part of the jet while those from the
pre-shock disc affects the supersonic part, and there by constitutes a multi
stage acceleration process. We show that the radiation from the inner disc not
only accelerate but also increase the mass outflow rate, while the radiation
from the pre-shock disc only increases the kinetic energy of the flow. With
proper proportions of these two radiations, very high terminal speed is
possible. We also estimated the post-shock luminosity from the pre-shock
radiations, and showed that with the increase of viscosity parameter the disc
becomes more luminous, and the resulting jet simultaneously becomes faster.
This mimics the production of steady mildly relativistic but stronger jets as
micro-quasars moves from low hard to intermediate hard spectral states.
