Introduction: Iron deficiency anemia in pregnancy is a commonest medical problem throughout the developing world with the burden of disease impacting in both mother and newborn . Anaemia affects nearly half of all the pregnant women in the world, these figures are 52% in the developing and 23% in the developed world. This study was conducted to find out IV iron sucrose or oral is better. Materials and methods: This prospective study is conducted in Obstetrics & Gynaecology Department. Women are randomly assigned (100 women each) to receive either calculated dose of intravenous iron sucrose (Group B) or oral ferrous suphate 200mg BD per day (Group A). Hemoglobin, hematocrit and mean corpuscular estimation is done before treatment and after 4wks of correction in both groups to note the improvement in values and monitored for adverse reactions. Results: Statistically significant rise in hemoglobin, hematocrit and mean corpuscular levels are found at 4th week in IV group compared to oral group. Conclusion: IV Iron sucrose better than oral iron.