The medicinal plants have been used for years in daily life to treat diseases all over the world. Azadirachta indica is a very useful traditional medicinal plant in the sub-continent. Each part of the tree has some medicinal properties. Phytochemical analysis gave positive results for steroids, phenolic compounds, alkaloids, glycosides, terpenoids, flavonoids and tannins. Leaf extract of Azadirachta indica contains pharmacologically bioactive constituents that may responsible for its activity against test organisms.