Most of the medicinal and aromatic plants are indigenous while the others are easily adaptable and offer best opportunity for introduction in the present agricultural system. These plants contain active constituents like mucilages, phenols, anthroquinones,tannins, coumarins, anthocyanins, flavonoids, glycosilinates, saponins, volatile oils, glycocides, alkaloids, vitamins and minerals etc., but systematic researches are required to understand the mode of action ...