  Rapidity dependent strangeness enhancement factors for the identified
particles have been studied with the help of a string based hadronic transport
model UrQMD-3.3 (Ultra-relativistic Quantum Molecular Dynamics) at FAIR
energies. A strong rapidity dependent strangeness enhancement could be observed
with our generated data for $Au + Au$ collisions at the beam energy of
30\textit{A} GeV. The strangeness enhancement is found to be maximum at
mid-rapidity for the particles containing leading quarks while for particles
consisting of produced quarks only, the situation is seen to be otherwise. Such
rapidity dependent strangeness enhancement could be traced back to the
dependence of rapidity width on centrality or otherwise on the distribution of
net-baryon density.
