... It is one of two species in the genus Azadirachta, and is native to India, China, Burma, Bangladesh, Sri Lanka, ... 1942, while working at the Scientific and Industrial Research Laboratory at Delhi University, British India, he extracted three bitter ... sugars, Ketones, Pentoses, Monosaccharide, General Carbohydrates, and etc.In India, the tree is variously known as "Sacred Tree," "Heal All," " ...