Phycoremediation of textile dye sample collected from the industrial area of PGC Textile Corporation Private Limited, Tirupur, and was carried out by using certain Cyanophyceae members of microalgae such as Oscillatoria boryana CAS101, Phormidium calcicola CAS102, and Synechocystis pevalakii CAS103. The treatment of effluent was analyzed by investigation of various parameters on control and treated effluent. The biochemical studies in treated effluent using the algae revealed that there is an increase in the level of protein up to 10%, 13% carbohydrate, 14% chlorophyll a, 16% chlorophyll b, 13% carotenoid, and 29% lipid. The textile dye color was decolorized from blue to green, and the pH level also increased from 5.7 to 7.5 due to the influence of the tested organisms. Reduction in absorbance was marked at various ranges from 385 to 280 nm of the UV spectrum. The degradation ability of S. pevalakii CAS103 was determined using FT-IR spectrum analysis, which revealed that the microalgae grown medium and effluent added grown medium showed shifting of intensity and peaks at 1076 cm