The present study was to investigate the catalytic activity of synthesized silver nanoparticles (AgNPs) using aqueous leaf extract of Coriander sativumthe aqueous leaf extracts. Appearance, crystalline nature, size and shape of nanoparticles are recorded from UV–vis (UV–vis spectroscopy), FTIR (Fourier transform infrared spectroscopy), XRD (X-ray diffraction), SEM (scanning electron microscopy) and TEM (transmission electron microscopy) techniques.