Further, we proved PSD-A induced apoptotic cell death in breast cancer cells via analyzing expression of apoptotic hallmarks i.e. cleavage of caspase-9, caspase-3 and poly (ADP ribose) polymerase (PARP) along with total caspase-9, caspase-3 and PARP. The gene discussed is CASP3; the disease is breast carcinoma.