  Pion condensation in an ultra-relativistic collision is an open puzzle yet to
be verified experimentally. However, it is not trivial to have a conclusive
result of pion condensation due to various experimental constraints.
Nevertheless, numerous theoretical approaches can help in understanding the
high-temperature Bose-Einstein condensation (BEC) in a better way. This work
uses the shear ($\eta$) and bulk viscosity ($\zeta$) phenomena for a hot and
dense pion gas to investigate the effect of possible Bose-Einstein condensation
in such an environment. This study considers the relaxation time approximation
under the Boltzmann transport equation to estimate $\eta$ and $\zeta$. Further,
it explores the significance of the temperature and chemical potential on the
number of particles in the condensate and viscosities. We find a substantial
change in the viscosity when the pion gas is under BEC. In addition, we also
study the speed of sound ($c_{\rm s}$) for the pion gas under BEC.
