  Doubly special relativity(DSR) introduce a minimal length scale i.e. the
Planck length scale, which is independent length scale in addition to the speed
of light in the normal special theory of relativity(STR). Doubly special
relativity leads to study the $\kappa$-Minkowski space-time. In this paper, we
present the result of our investigation on the thermodynamics of photon gas in
the $\kappa$-Minkowski space-time. For studying this, we start with the
$\kappa$-deformed dispersion relation and keep terms upto first order in the
deformation parameter $a$ and we study that how does $\kappa$-deformed
dispersion relation affect the thermodynamics of photon gas. In the limit,
deformation parameter $a \rightarrow 0$, we get back all the results in the
special theory of relativity(STR)\cite{partition}.
