In pre eclampsia there is failure of trophoblastic invasion which increases the vascular resistance and decreases the uteroplacental and fetoplacental perfusion. The uteroplacental and fetoplacental perfusion can be studied non-invasively by means of Doppler ultrasound.Pre eclampsia isthe most important cause for maternal and perinatal morbidity and mortality. It is necessary to predict preeclampsiato decrease the incidence and adverse outcomes of the same. A prospective study was done in the department of obstetrics and gynaecology including100 women with singleton pregnancy between 11 to 13 weeks of gestation without exclusion criteria and were divided in to two equal group: those with previous history of preeclampsia and FGR (N= 50) in study group and without any previous history of preeclampsia and FGR included in controlgroup. Pregnant women in both the group underwent doppler examination at 11 – 13 weeks and 21 to 24 weeks and uterine artery pulsatility index was determined and development of preeclampsia and perinatal outcome was noted in both the groups. In studygroup, 13 women developed preeclampsia in that 9 had abnormal doppler, 10 developed FGRin that 7 had abnormal doppler, 9 (18%)had preterm delivery in that 5 had abnormal doppler and 8(16%) NICU admission in that 7 had abnormal doppler and 4 (8%) neonatal death 3 had abnormal doppler. In controlgroup, 3 women developed preeclampsia in that 1 had abnormal doppler, 2 developed FGRin that none had abnormal doppler, 4 had preterm delivery in that 1 had abnormal doppler and 2 NICU admission in that 1 had abnormal doppler and no neonatal death.