In this paper, the adsorption of direct red 81 (DR-81) and reactive yellow 145 (RY-145) onto activated carbon was prepared from Caesalpinia pulcherrima pod (CPP) in an aqueous solution was investigated. Activated carbon samples were prepared using three different acids and were examined for their Physicochemical characteristics. Visualized the surface porosity of activated carbon from the C. pulcherrima pod using scanning electron microscopy (SEM) analysis. Energy Dispersive X-ray Analysis EDX and Fourier transformation infrared (FTIR) spectroscopy techniques were used to detect surface functional elements. The study finds that C. pulcherrima pod-derived activated carbon is an effective and low-cost biosorbent for removing reactive yellow and direct red dyes from wastewater. It could also be used as an eco-friendly and cost-effective adsorbent in industrial wastewater treatment.