Introduction: -pre-eclampsia complicates about 5-10% of hypertensive pregnancies In pre-eclampsia detection of systemic involvement through abnormal value of bio-chemical parameters ',an predict.progression frorn mild to severe stages and prevent complication like ecclampsia, renal failure Oy timely intervention. Aim & objectives: 1. To determine the incidence of severe preeciampsia based on abnormal biochemica! parameters. 2. To correlate abnormal biochemical parameters with maternal and fetal outcome in severe pre-eclampsia. Place of study and duration: Gandhi memorial hospital associated S.S.M.C. Rewa During June 2005-May 2007.