  We present a multiwavelength study of the ultra compact HII region associated
with IRAS 20178+4046. This enables us to probe the different components
associated with this massive star forming region. The radio emission from the
ionized gas was mapped at 610 and 1280 MHz using the Giant Metrewave Radio
Telescope (GMRT), India. We have used 2MASS $J H K_{s}$ data to study the
nature of the embedded sources associated with IRAS 20178+4046. Submillimetre
emission from the cold dust at 450 and 850 $\mu$m was studied using JCMT-SCUBA.
The high-resolution radio continuum maps at 610 and 1280 MHz display compact
spherical morphology. The spectral type of the exciting source is estimated to
be $\sim$ B0.5 from the radio flux densities. However, the near-infrared (NIR)
data suggest the presence of several massive stars (spectral type earlier than
O9) within the compact ionized region. Submillimetre emission shows the
presence of two dense cloud cores which are probably at different evolutionary
stages. The total mass of the cloud is estimated to be $\sim$ 700 -- 1500 $\rm
M_{\odot}$ from the submillimetre emission at 450 and 850 $\mu$m. The
multiwavelength study of this star forming complex reveals an interesting
scenario where we see the presence of different evolutionary stages in star
formation. The ultra compact HII region coinciding with the southern cloud core
is at a later stage of evolution compared to the northern core which is likely
to be a candidate protocluster.
