Any plant that harbors curative elements or properties may be termed as medicinal plant. In India, there is much enriched biodiversity due to wide range of climate conditions. According to botanical survey of India, more than 470,000 plant species exists in India, out of which more than 35% are endemic to the country. India has deep rooted traditional system of medicine comprising of Ayurveda, Siddha and Unani which are in existence since several centuries. Here, in this monograph, we have described three medicinal plants.