  Using the Chandra ACIS-I instruments, we have carried out a deep X-ray
observation on the Galactic plane region at (l,b) ~ (28.5, 0.0), where no
discrete X-ray sources have been known previously. We have detected, as well as
strong diffuse emission, 274 new point X-ray sources (4 sigma confidence)
within two partially overlapping fields (~250 arcmin^2 in total) down to the
flux limit ~3 x 10^{-15} $ erg s^{-1} cm^{-2} (2 -- 10 keV) and ~ 7 x 10^{-16}
erg s^{-1} cm^{-2} (0.5 -- 2 keV). We clearly resolved point sources and the
Galactic diffuse emission, and found that ~ 90 % of the flux observed in our
field of view originates from diffuse emission. Many point sources are detected
either in the soft X-ray band (below 2 keV) or in the hard band (above 2 keV),
and only a small number of sources are detected in both energy bands.
  On the other hand, most soft X-ray sources are considered to be nearby X-ray
active stars. We have carried out a follow-up near-infrared (NIR) observation
using SOFI at ESO/NTT. Most of the soft X-ray sources were identified, whereas
only a small number of hard X-ray sources had counterparts in NIR. Using both
X-ray and NIR information, we can efficiently classify the point X-ray sources
detected in the Galactic plane. We conclude that most of the hard X-ray sources
are background Active Galactic Nuclei seen through the Milky Way, whereas
majority of the soft X-ray sources are nearby X-ray active stars.
