  In minimal supergravity based supersymmetry models the charged sleptons as
well as the sneutrinos may be lighter than the squarks. In such light slepton
scenario the search for lighter stop squark has been investigated in the
dilepton + missing $p_T(\missingpt)$ +jets ($\ge 1$) channel at Tevatron. In
this scenario semileptonic decay of lighter stop squark has been considered via
off shell and on shell charginos. In the latter case the chargino undergoes
pure leptonic 2-body decay. We observe that for some favourable region of the
MSSM parameter space one can probe lighter stop squark mass upto 140 GeV with
few events in the present data set for which the luminosity is 110 pb$^{-1}$.
At the MI upgrade one is likely to end up with more events.
