According to World Health Organization (WHO) -"Any plant and its organs containing any substance which can be used therapeutically, or can be used as raw material for Chemical / Pharmaceutical synthesis is categorized as herbal medicine. Herbal medicine has been described as the oldest form of therapy practiced by humans today, with archaeological evidence of medicinal use of herbs dating back to 60,000 years. Herbal medicine often complement conventional treatments, providing safe, well tolerated remedies for chronic illness.