 This study successfully synthesizes silver nanoparticles using morinda tinctoria leaf extract under different pH conditions and characterizes their properties through UVVIS spectrophotometry, scanning electron microscopy, SEM, x-ray diffraction, XRD, energy dispersive x-ray spectroscopy, EDX, and FIA transform infrared, FTIR, spectroscopy. The photocatalytic activity of the synthesized silver nanoparticles is examined by degrading methylene blue under sunlight irradiation, with nearly 95% degradation achieved at 72H of exposure time. This article was offered by M. Vanaja, K. Paul Kumar, M. Babaraja, and others.