Abstract: The study emphasizes the use of oxidation resistant copper Nano particles as an efficient tool for the degradation of organic dyes contained in effluents from textile dyeing and printing industries. The synthesis of Copper Nano particles was doneusing modified surfactant assisted chemical reduction process in an aqueous solution. The synthesis was optimized using varying concentrations of reactants and reaction time intervals, monitored simultaneously by UV- Visible spectroscopy and Dynamic Light Scattering (DLS) measurements. The synthesized nanostructures were finally characterized for their size distribution using DLS. These Cu Nano particles have been used as a heterogeneous catalyst for the comparative reductive degradation of commercial samples of methyl orange (MO) and aniline yellow (AY) in the presence of sodium borohydride (NaBH4) used as a potential reductant. Cu NPs were used for reductive degradation of samples containing dyes collected from the drains of different local textile dyeing units of Delhi NCR region as well as different textile industries of Jodhpur region of Rajasthan.The degradation studies were conducted using UV- Visible spectroscopic methods.