Containment reinforcement is a novel earthquake resistant feature for masonry building. Present study explores fragility curves for containment reinforced multistoried building. A typical G+2 masonry building has been modelled in commercial finite element software ABAQUS SIMULIA version 6.14-1. Material model employed in present study has already been validated through experiments on masonry assemblages and masonry building model. In the present study, drift ratios corresponding to immediate occupancy, life safety and collapse prevention damage state have been obtained through pushover analysis of G+2 masonry building under consideration. Subsequently, the masonry building was analyze under ground motions with varying Peak Ground Accelerations (range 0.08g to 0.54g). Probability of exceedance of particular damage state versus PGA has been plotted as an outcome of this analysis. These fragility curves confirm effectiveness of containment reinforcement provided in very small percentage, in mitigating seismic risk.