Syzygium cumini, popularly known as Indian blackberry is a versatile traditional medicinal plant, belongs to the family: Myrtaceae and documented for various folklore claims. It is native to South Asia, and has also been referenced in Ayurveda, Siddha, Unani and still used for therapeutic benefits. In Ayurveda, it is pronounced as jambul or jamun and represented as highly valued because of its ability to manage conditions like diabetes, digestive disorders, and general debility. The phytochemical investigations of S. cumini reveals the presence of various bioactive compounds such as flavonoids, alkaloids, tannins, phenolic acids, and essential oils. The antioxidant potential of S. cumini beneficial for various ailments is attributed to the scavenging of free radicals’ property, while chemotherapeutic potential of this plant is linked to the inhibition of pathogenic microorganisms. Almost majority of Syzygium cumini plant parts are investigated but the seeds still need more exploration to confer the folklore use of seed exhibiting significant antidiabetic effects probably by modulating glucose metabolism and enhancing insulin sensitivity, the anti-inflammatory and antihyperlipidemic activities are attributed to the inhibition of pro inflammatory mediators and regulation of lipid metabolism, respectively. Overall, the diverse biological activities of S. cumini seed underscore their potential therapeutic applications in the management of various ailments, including diabetes, microbial infections, inflammation, hyperlipidemia, and cancer. Further research is warranted to elucidate the underlying mechanisms of action and optimize their utilization in biotechnological, pharmaceutical and nutraceutical formulations.