Background: Type-2 diabetes mellitus (T2DM) is a progressive and chronic disease characterized by
both β-cell dysfunction and increased insulin resistance. Diabetes mellitus is now considered a giant
killer disease of the 21st century with its vicious prongs in the South-East Asian countries, specially India, which is rightly said to
be the ''Diabetes Capital'' of the world. Vitamin D has important effects on insulin action, and may impact on a number of
pathways which may be of importance in the development of type 2 diabetes mellitus. Materials & Methods: In this study 62
Type-2 diabetic patients, 62 healthy controls were enrolled. Biochemical analytes measured were Serum glucose (Fasting Blood
Sugar & Post Prandial Blood Sugar), Glycosylated Haemoglobin, Serum Vitamin-D. Results: The mean Serum Vitamin-D in
Type-2 diabetic subjects were (16.3 ±3.0) while in healthy subjects(controls) the values were (39.3±5.2) respectively. These
values were found to be statistically highly signicant(p<0.001). Conclusion: Serum Vitamin-D levels were decreased in Type 2
diabetic subjects as compared to the values in healthy subjects(controls).