Background:Preeclampsia is a multisystem disorder, which occurs only in pregnant women during the second and third trimesters of pregnancy and is associated with raised blood pressure and proteinuria. It rarely presents before 20 weeks of gestation like in hydatidformmole.Eclampsia is a syndrome with one or more episodes of convulsions in association with preeclampsia .In India, the national incidence of hypertensive disorders is 15.2%,with incidence in nulliparous women being four times greater than in multipara.With severe renal involvement, glomerular filtration may be impaired and the plasma creatinine concentration may begin to rise.Elevated uric acid is another component of the preeclampsia. Although hyperuricemia does correlate with maternal morbidity, there is an even stronger association of uric acid with the risk for small birth weight infants and with overall foetal mortality. The hyperuricemia of preeclampsia has been variably suggested to be associated with lactic acidosis, altered renal functions or oxidative stress.AIM: To Study and compare renal function tests in Pre-eclampsia and Eclampsia with normal healthy pregnant women and assess the antepartum severity in both the diseases