  We investigate the Standard Model (SM) extended with a colored charged
scalar, leptoquark, having fractional electromagnetic charge $-1/3$. We mostly
focus on the decays of the leptoquark into second and third generations via
$c\,\mu, t\, \tau$ decay modes. We perform a PYTHIA-based simulation
considering all the dominant SM backgrounds at the LHC with 14\,TeV center of
mass energy. Limits have been calculated for the leptoquark mass that can be
probed at the LHC with an integrated luminosity of 3000 fb$^{-1}$. The
leptoquark mass, reconstructed from its decay products into the third
generation, has the maximum reach. However, the $\mu + c$ channel, comprising a
very hard muon and $c$-jet produces a much cleaner mass peak. Single leptoquark
production in association with a $\mu$ or $\nu$ provides some unique signatures
that can also be probed at the LHC.
