Diabetes mellitus (DM) is a metabolic disorder and a significant health problem all over the world. The current study elucidates the inhibitory potentials of the benzothiazine-pyrazole hybrid series against the α-Glucosidase enzyme. The molecular docking was employed to determine the binding affinity of synthetic compounds (ligands) with α-Glucosidase enzyme (receptor) active sites via the molecular operating environment (MOE). The molecular docking analysis revealed the best inhibitory interaction between certain synthetic compounds and the enzyme's active sites (α-Glucosidase). These compounds were further examined for drug-like properties, which necessarily validate the use of the compound as a drug. Then selected compounds were subjected to in vitro analysis to find the inhibitory potential with minimal dose. All compounds were docked into the active sites with the best binding pose and low rmsd values. The anti-diabetic analysis revealed that compound ST3 is more active against α-Glucosidase with IC50 values 5.8 µM as compared to acarbose which is 58.8 µM. The present study exhibited compound 2c has a high proficiency in lowering blood glucose levels compared to acarbose. This study strengthened the scope of designing/synthesizing these benzothiazine-pyrazole hybrid molecules as anti-diabetic drug molecules in the pharmaceutical industry.