The present modern industrial world results the problems related to the huge amount of poultry waste generated throughout the world due to industrial revolution, over population and urbanisation. The environmental burden due to such wastes is increasing at an alarming rate and thus there is a need for bioremediation. Previous treatment methods include land filling. But land filling pose problems of secondary pollutants like landfill leachate, greenhouse gases and odour. The modern treatment methods lead to the production of Mosquitocidal Toxins (Bio pesticides and Bio insecticides). For the production of Mosquitocidal toxins we used chicken feather powder (0.5%) for the preparation of bacterial culture media, on which we cultured entomopathogenic bacteria (Bacillus spp.) which completely degrades feather waste. The Bacillus spp. was screened from dumped poultry waste soils, sewage bed, river bed and pond bed of different locations at Vellore and Chittoor. The Mosquitocidal toxin is extracted and then assayed by testing on Culex larvae. The endotoxins produced are a potent larvicidal agent for mosquito. Thus reduces the overall consumption and harmful effect of commercially available mosquito repellents. Hence the treatment of feather waste can be envisaged. The screening methodology, tentative identification and Mosquitocidal nature of end product will be discussed.