Plants are one of five big groups of living things. The whole plant biodiversity is the largest source of herbal medicine and among these India have 15 agro climatic zones and 17000- 18000 species of flowering plants of which 6000-7000 are estimated to have medicinal usage. India is well known for the usage of medicinal plants in curing various diseases from ancient times. It has been estimated that in developed countries such as United States, plant drugs constitute as much as 25% of the drugs, while in fast developing countries such as china and India, the contribution is as much as 80%. The Indian medicinal plants and their products also account of exports in the range of Rs. 10 billion. However, the blind dependence on synthetics is over and people are returning to the naturals with hope of safety and security. It raises a need of studies in medicinal plants as these are involved in maintaining traditional therapies and also they lead to economical support to the country. As medicinal plants play a vital role in Indian medicine so there cultivation is also very essential.