摘要:The global scenario is now supporting the development of modern drugs from less toxic plant products with proven medicinal properties. Each part of the neem plant (Azadirachta indica A. Juss) reportedly has various medicinal properties and has been in use in many continents for centuries. Azadirachta indica leaves possessed good anti bacterial activity, confirming the great potential of bioactive compounds and is useful for rationalizing the use of this plant in primary health care. The goal of this work is to treat the drinking water from microbes which cause disease. By using the leaf extract oil it can control upto 99% at different dose and treatment time.