  Photometric and spectral evolution of the Type Ic supernova SN 2007ru until
around 210 days after maximum are presented. The spectra show broad spectral
features due to very high expansion velocity, normally seen in hypernovae. The
photospheric velocity is higher than other normal Type Ic supernovae. It is
lower than SN 1998bw at $\sim$ 8 days after the explosion, but is comparable at
later epochs. The light curve evolution of SN 2007ru indicates a fast rise time
of 8$\pm$3 days to $B$ band maximum and post-maximum decline more rapid than
other broad-line Type Ic supernovae. With an absolute $V$ magnitude of -19.06,
SN 2007ru is comparable in brightness with SN 1998bw and lies at the brighter
end of the observed Type Ic supernovae. The ejected mass of \Nifs is estimated
to be $\sim0.4\Msun$. The fast rise and decline of the light curve and the high
expansion velocity suggest that SN 2007ru is an explosion with a high kinetic
energy/ejecta mass ratio ($E_{\rm K}/M_{\rm {ej}}$). This adds to the diversity
of Type Ic supernovae. Although the early phase spectra are most similar to
those of broad-line SN 2003jd, the [OI] line profile in the nebular spectrum of
SN 2007ru shows the singly-peaked profile, in contrast to the doubly-peaked
profile in SN 2003jd. The singly-peaked profile, together with the high
luminosity and the high expansion velocity, may suggest that SN 2007ru could be
an aspherical explosion viewed from the polar direction. Estimated oxygen
abundance 12 + log(O/H) of $\sim$8.8 indicates that SN 2007ru occurred in a
region with nearly solar metallicity.
