Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. Here we focused on the epidemiology, late diabetic complications, association between diabetes mellitus and HCV infection and plasma protein profiling. Type 2 diabetes is most prevalent type and is more common in females. Above 70% diabetics had poor glycemic control along with one or more late diabetic complication(s) i.e. hypertensions, any grade of retinopathy and neuropathy. About 36.538% diabetic patients were reported to have HCV...