  We consider excited lepton ($\bar{l^*}l {\rm or} \bar{l^*}l^*$) production in
the context of effective theories with being four-fermion contact interaction
at LHC. We also consider the two body decay mode of excited lepton ($l^*$) to
standard model fermion($l$) and a gauge boson $V(\equiv \gamma,Z,W)$. We have
performed next-to-leading order (NLO) QCD corrections to this process. In spite
of non-renormalizable nature of the interaction, the higher order QCD
corrections are possible and meaningful. We have shown that these corrections
can be substantial and significant. By considering the issue of scale
dependence, it is shown that the scale dependence of the NLO cross sections are
greatly reduced as compare to leading order (LO) cross section.
