By and large the major group of patients who require interventions for congenital heart disease in adult life would be those with atrial septal defects. This is so because they will be asymptomatic and may be detected only in adult life during routine evaluation. Unlike ventricular septal defects, they seldom develop irreversible pulmonary hypertension by adulthood and are amenable to device closure or surgery. Next common congenital heart disease which may require intervention in adult life would be valvar aortic stenosis, followed by coarctation of aorta, valvar pulmonary stenosis, patent ductus arteriosus and ventricular septal defect. The last two are more often corrected earlier in childhood or have already developed irreversible pulmonary hypertension by the time they reach adulthood so that the number which go for primary intervention in adults is lower.