Background:Cardiac disease is an important cause of maternal mortality and morbidity both in ante partum and postpartum period. The overall incidence of heart disease in pregnancy is <1%. Objective of present study was to determine maternal outcome in pregnant women with heart diseases in terms of fetal complication, maternal complication and Mode of delivery. Aims: The aim of this study is to evaluate the influence of biological factors inPerinatal Outcome in Heart Disease Complicating Pregnancy