Background: Diabetes can affect many different organ systems in the body and, over time, can lead to serious complications. Surgical patients with DM are estimated to utilize 45% excess bed days compared to people without DM admitted to medical wards. In diabetic patients undergoing non-cardiac general surgery, the peri-operative mortality rate is significantly higher than the mortality seen in patients without DM. Hence, this study was conducted to assess the postoperative adverse events in diabetic patients undergoing orthopedic and general surgeries. Materials and Methods: A total of 200 subjects with presence of type 2 diabetes mellitus were enrolled. Complete demographic and clinical details of all the subjects was obtained. A Performa was made and diabetes related history of all the patients was recorded. Inclusion criteria for the present study included type 2 diabetic patients scheduled to undergo orthopaedic or general surgical procedures. All the patients were recalled in morning on the day of surgery and complete biochemical and haematological profile was evaluated. Postoperative follow-up was done and occurrence of postoperative adverse effects were recorded separately. Results:Mean age of the patients was 48.3 years. Out of 200 patients, 134 patients were males while the remaining were females. Overall, incidence of postoperative adverse events was 74 percent. While analysing the correlation of HbA1c with incidence of postoperative adverse events was significantly higher among patients with higher HbA1c values. Conclusion:Diabetic patients are associated with significant proportion of postoperative adverse events.