Dye-containing wastewater discharged from several industrial activities is a serious threat to the water bodies around industrial areas, because these toxic, organic or synthetic, dyes can affect plant life and human life indirectly affecting the ecosystem of the environment. The study was aimed to enhance the capacity of the biosorption process by doping copper oxide on to fungal biomass for dye remediation. The isolated fungal strain is Aspergillus flavus. Copper oxide nanoparticles are synthesized by green synthetic pathway and Coriandrum sativum was utilized as 0.04 M Copper oxide and fungal biomass