Study group consisted of 100 individuals between the age group of 35-65 years of age. Of which 50 individuals with type 2 diabetes mellitus were considered as cases. The control group consisted of 50 age and sex matched healthy individuals. Study was approved by institutional ethical committee. By aseptic precautions 2 ml of venous blood was collected in a plain vacutainer tube, after 8-12 hours of fasting. Serumadenosine deaminase, serummalondialdehyde, and serum total antioxidant capacity were estimated in all groups.