  We analysed the archival XMM-Newton data of the radio loud narrow line
Seyfert1 galaxy PMN J0948+0022 in the energy range 0.3--10.0 keV. The X-ray
data reveal that the spectrum in the 0.3--10.0 keV energy band is not a simple
power-law as previously described in the literature. Instead it consists of a
power-law with soft excess below 2.5 keV. The X-ray spectrum was fitted with
four different models and it was shown the soft excess component of the
spectrum in the 0.3--2.5 keV energy range could be described reasonably well
within the framework of the thermal Comptonization model as well as
relativistically blurred reflection model. The power-law component required to
fit the spectrum beyond 2.5 keV was found to be rather hard compared to the
ones observed in other unobscured active galactic nuclei. It is also shown that
the Swift/XRT spectrum from the source could not reveal the soft excess
component due to poor statistics. The fractional variability estimated from
XMM-Newton data indicates the presence of independently varying components in
the spectrum above and below 1 keV.
