  We propose a new mechanism for baryogenesis. We study the effective potential
of left-right extension of the standard model and show that there can be a
first order phase transition at the left-right symmetry breaking and hence
$(B-L)$ symmetry breaking scale, which is around TeV in our scenario. As a
result, although $(B-L)$ violating interactions are in equilibrium at this
scale, enough $(B-L)$ asymmetry may be generated. This $(B-L)$ asymmetry is
then converted to baryon asymmetry during the anomalous electroweak process. If
right handed gauge bosons are seen in the TeV scale, then we argue that this
will be the only consistent mechanism to generate baryon asymmetry of the
universe.
