The Pterocarpus marsupium belong to family Fabaceae and is widely distributed in central, western and southern regions of India. The role of Pterocarpus marsupium as anti-diabetic has been very well established. Its extract has been prepared using many methods like infusion, maceration, decoction and percolation. Several chemical constituents like pterostilbene, (-)-epicatechin, pterosupin, marsupsin, etc., have been identified and isolated. Pterocarpus marsupium extract also shows promising results in cataract and hypertriglyceridaemia.