Hypertrophic cardiomyopathy (HCM) is a chronic disease condition, with a predominance of 1 in 500 individuals in general population, which is nearly around 2 million people in India. Hypertrophic cardiomyopathy is defined as the presence of improper left ventricular wall thickness in the absence of other conditions which are capable of producing hypertrophy. Due to the abnormal filling process, the left ventricular end-diastolic pressure increases which lead to the augmentation in left atrial pressure. The rise in LA (left atrium) pressure consequently results in the increase in left atrial size and volume that can cause atrial fibrillation and flutter.