In simple words, medicinal plants may be defined as plants that possess medicinal properties and help in curing various ailments of the body either slowly or rapidly. However in terms of plant science, there are many plants that secrete special chemical compounds from different parts to survive in adverse conditions. The compounds synthesized by plants were identified and now are used for therapeutic purposes in all the herbal industries. It is said that almost all the plants have medicinal properties and hence advised by all the health practitioners to consume all those fruits, vegetables, roots and herbs that are considered edible. These active ingredients synthesized by plants help them to get protected from predators for example animals, microorganisms, rodents, birds and rodents. Following this property, various growers have started the commercial cultivation of medicinal plants on a larger scale to generate profit.