Background: The fetal heart’s structural evaluation is well established. Functional evaluation using pulsed-wave Doppler is another option. E/A ratios describe the relationship between the maximal velocities of the E and A ventricular filling waveforms. E/A ratios in normal fetuses are usually <1 but show a constant increment during gestation, which is primarily related to the increment of the E wave. E/A ratios are lower in intrauterine growth restriction (IUGR) fetuses than in normally grown fetuses at the same gestational age. In normal fetuses, the right ventricle contributes the majority of the combined cardiac output (55–60%). In IUGR fetuses, this preponderance switches to the left ventricle to improve blood supply to the fetal body and brain. Systolic and diastolic heart functions are also measured by the myocardial performance index (MPI). IUGR can affect the fetal and newborn health in the long run. IUGR can be associated with various fetal and maternal conditions; hence, it is necessary to establish an early diagnosis and a therapeutic strategy. It is necessary to determine whether obstetric intervention via preterm delivery is recommended to improve these patients’ perinatal outcomes. Our study’s objective was to determine the distribution of these Doppler values with neonatal outcome in both normal and IUGR fetuses. We did this by measuring the fetal diastolic component of the cardiac cycle using spectral Doppler through the atrioventricular valves. Methods: We did a cross-sectional study of 217 patients out of 3200 screened patients at routine antenatal visits from January 2020 to October 2021 in SKNMC and GH, Pune. Observation: In our study of 217 patients, we observed that all 100% IUGR cases showed an abnormal E/A ratio which was decreased as compared to normal fetuses in the same gestational age. Conclusion: We conclude that E/A ratio with Doppler echocardiography can help evaluate fetal cardiac status and identify IUGR fetuses with cardiac problems. Early intervention for IUGR fetuses with cardiac compromise can improve outcomes and reduce risks.