Abstract: A search for SUSY in a low mass mSUGRA test point by looking for purely hadronic top decays in the final states (t->bW->bjj) is presented. The emphasis is to use some variables which are reliable from the early stages of LHC run. Missing transverse energy for early data is not under control, New kinematic variables like Meff are used to suppress the dominant backgrounds from QCD and t\bar{t} events.