A9 month old pregnant lady presents with Jaundice and distension, pedal edema after delivering normal baby. Her clinical condition deteriorates with increasing abdominal distension and severe ascites. Her bilirubin is 5 mg/dl, S. alkaline phosphatase was 450 u/L and ALT (345 Iu). There is tender hepatomegaly 6 cm below costal margin and ascitic fluid shw protein less than 2 mg%. Diagnosis is