Introduction: Diabetes Mellitus (DM) is the main cause of illness and mortality in both developed and developing nations. Patients with DM are more likely to get skin and soft tissue infections, urinary tract infections and pneumonia. The organisms that cause pneumonia are generally like those found in the general population; however, gram negative organisms are predominant in DM. The present study was thus planned to study the demographical and etiological profile in diabetics and non-diabetics with respect to clinical presentation.