Recently multiferroic materials have been studied for possible potential application in next-generation information technologies and systems, which possess a higher memory speed and density with lower energy consumption. There are many multiferroic materials but BiFeO3 (BFO) is the most studied multiferroic material due to its room-temperature multiferroic properties. Similarly La0.67Sr0.33MnO3 (LSMO) is perovskite manganites which exhibit fascinating properties at room temperature such as half metallicity and colossal magnetoresistance (CMR). We propose to perform low temperature polarized neutron reflectivity (PNR) measurements on BFO/LSMO system grown on MgO substrate to investigate the depth dependent magnetization in this system.