Background: CVD is a major non-communicable disease in India with a high burdenof morbidity and mortality. A large proportion of the cardiovascular diseases consist of coronary artery disease (CAD). Acute coronary syndrome (ACS) is an important sub-class of CAD associated with significant mortality. Most of the deaths during the peri-infarction period are due to cardiac arrhythmias, a condition for which reliable evidence from India is lacking. Assessment of the patterns and management of cardiac arrhythmias in the Indian subcontinent thus becomes essential to quantify, and more importantly, to prevent the high mortality associated with the disease