This study was undertaken to evaluate the awareness of Periodontitis in Diabetic patients in Osmania General Hospital, Hyderabad. Total number of 250 Diabetic patients from Out–patient department of Endocrinology, Osmania General Hospital, Hyderabad, Telangana, India were included in the study. This study was a questionnaire type of survey , which included 12 questions related to overall systemic health and dental concerns assessment. Out of 250 patients, 107 were on insulin therapy and remaining on oral hypoglycemic drugs. 23 had habit of regular visit to dentist out of which only 13 patients follow up gingival disease. Most of the patients brush once daily, only 7 patients used auxiliary aids. Most of the subjects in the study were unaware of oral hygiene maintenance and relationship between oral and diabetes, so the oral health education is needed in diabetes subjects to control blood glucose levels