The world population is experiencing an upsurge in various diseases. Many diseases are major causes of morbidity and mortality to human beings across the globe. Some of them do not have any cure while others are becoming resistant to the existing conventional drugs. Some of these ailments are Cancer, Asthma, Tuberculosis (TB), AIDS, Diabetes mellitus, Heart diseases, Malaria and Hepatitis. There has been a great effort to cure these diseases with herbal medicinal plants.