Detecting Heavy Charged Higgs Boson at the LHC

	Discovery of charged Higgs signal presents a clear and unambiguous signal of beyond standard model We investigate the signature of heavy charged Higgs following the decay mode via top and bottom quark in both hadronic and leptonic final states, where the main dominant background are from top production and inclusive QCD production. The jet substructure technique is used to reconstruct the top quark in order to avoid the re-combinatorial problem. The cut based analysis is performed constructing various kinematic variables and signal sensitivity is found to be not promising even for high

	luminosity owning to huge background cross sections. However, we reanalyzed both signal and background employing MVA technique. We find an improvement in signal sensitivity in this method. The charged Higgs signal upto the mass of about 500 GeV can be observed with 300/fb integrated luminosity option where as this range can be extended to 800 GeV with 3000/fb luminosity option.