Twin reversed arterial perfusion (TRAP) sequence is a rare complication of monochorionic multifetal pregnancies, and affects approximately 1 % of monochorionic twins and it has a prevalence of 1/35000 pregnancies. This condition belongs to the broad spectrum of twin-to-twin transfusion syndrome and is presumed to result from the fused placentation of mono-chorionic twins, in which vascular anastomoses arise between the arterial circulation of the hemodynamically larger 'pump' twin and that of the recipient 'perfused' twin. The severity of this syndrome depends upon the type of anastomoses and the timing of their establishment. Here we present a case of acardiac twin pregnancy in which obliteration of blood supply to the acardiac twin using RFA resulted in a good postnatal outcome for the pump twin.