Because of its usefulness in managing diabetes, Pterocarpus marsupium is famously termed as “the miracle cure for diabetes” in Ayurveda literature. It is believed that Vijaysar was first introduced by Susruta, the ancient surgeon from India for diabetes.

Pieces were soaked in water overnight, sieved and taken by diabetic patients. This was further improved by preparing tumblers carved from the wood of P. marsupium in which water was stored overnight and consumed by diabetic patients the following day.