Introduction: Atrial fibrillation (AF) is one of the most commonly sustained arrhythmia and an important cause of morbidity, mortality, and health care expenditure. it is associated with many predisposing factors like an underlying cardiovascular disease. The most notable is rheumatic mitral stenosis. Hypertension (HTN) and coronary artery disease (CAD) are the most common risk factors in the developed world. Aim: Here is to evaluate the electrocardiographic and echocardiographic findings in patients with atrial fibrillation patients. Method: We have adopted for our research is a cross-sectional, observational, non-interventional, study. This study the period of October 2018 to March 2020. Result: The male: female ratio was 1: 0.80IHD (40.76%) was the most common antecedent cause for AF, followed by Rheumatic heart disease(RHD), Mitral stenosis(MS) (both 33.84%) and hypertension(HTN) (31.53%). Conclusion: Electrocardiographic evaluation of the subjects revealed ischemic heart disease as the most common finding. Fol lowed by echocardiographic evaluation showed left atrial enlargement and mitral stenosis..