Aim: To find out the incidence and prevalence of different type of arrhythmias and conduction defects in patients with diabetes mellitus in relation to electrocardiography and echocardiography in patient admitted to department of medicine RIMS, Ranchi.

Material and Method: The present study comprised of 50 diabetic patients admitted to indoor and outdoor medical wards of RIMS Ranchi .The diagnosis was made on the basis of detailed history, through clinical examination with particular attention to examination of cardiovascular system. Patient were labeled to be diabetic on WHO criteria.

Result : In our study we included 50 diabetic patients. one case was of type I diabetes and forty nine case belonged to type II diabetes. In our study we found myocardial infarction in 12% cases, ischemic changes in 12% cases and left ventricular hypertrophy in 22% cases of diabetes mellitus. Various type of conduction defect was found in 20% of cases. Arrhythmias and non–specific ST–T changes were found in 10% cases.

 Conclusion: Changes of infarction and ischemia were noted in 24% diabetics. Left ventricular hypertrophy was noted in 20% diabetics. Various conduction blocks were found in 20% and arrhythmia in 4% diabetics. Non–specific ST–T changes was found in 12% diabetics