Objectives: The objective of the study was to develop new antidiabetic agents from synthetic route. Methods: An attempt was made to synthesize various flavones. The structures of the compounds were elucidated by UV, IR, 1 H-NMR and mass spectrometry. Furthermore, an in vivo antidiabetic activity study was carried out by streptozotocin induced model. Biochemical parameters were extensively studied to support anti-diabetic potential of synthesized flavones. Results: The study reveals that flavones such as F1, F2, F3, F5 and F8 were potentially considered for in-vivo antidiabetic activity. Fasting blood glucose and biochemical parameters like total protein, urea and creatinine, SGOT, SALP and SGPT were performed for the biological evaluation and compared with that of standard glibenclamide (5 mg/kg). Among the five consolidated flavones, F8 possess high significant (p < 0.01) results and restores the blood glucose level, liver enzymes and renal parameters. Based on these results, a promising potent drug would be developed in the management of diabetes mellitus. Conclusion: In-vivo evaluations of selected compounds were carried out for its antidiabetic activity considering different biochemical parameters. Some of the selected flavones showed excellent and noticeable antidiabetic activity.