In the last few decades there has been an exponential growth in the field of herbal medicines, owing to their natural origin and lesser side effects. India is sitting on a gold mine of well-recorded and well-practiced knowledge of traditional herbal medicines. WHO has recently defined traditional medicine (including herbal drugs) as comprising therapeutic practices that have been in existence, often for hundreds of years, before the development and spread of modern medicine and are still in use today. Traditional medicine is the synthesis of therapeutic experience of generations of practicing physicians of indigenous systems of medicine. Today, the world over, there is a great deal of interest in the Ayurvedic System of Medicine and thus the demand for various commonly used medicinal plants in the production of Ayurvedic medicines is ever increasing. Like any other branch of science and technology, present scenario of herbal medicine has its own limitations arising out of its owntechnical constituents.