Abstract: The textile dyeing units of Pallipalayam area of Namakkal District play a vital role in polluting the river Cauvery directly and spoiling the underground water levels indirectly by letting off their dyeing effluents. This leads to serious environmental hazards of aquatic organisms. In the present study, the textile dyeing effluents of six major textile dyeing units (ST1, ST2, ST3, ST4, ST5 and ST6) were selected, analysed the physico-chemical parameters and their impact on the total muscle protein levels of the dragonfly larvae Bradinopygageminata. From the results it was observed that the textile dyeing effluent of six stations contain high level of several organic and inorganic pollutants, which include toxic metals and chemicals. The levels of proteins were observed in decreasing trend in all the concentrations of effluent in different larval stages. It was concluded thatthe improper/without treatment of effluent when let out would results in adverse effects on aquatic and terrestrial ecosystems.