Acute on Chronic Liver Failure (ACLF) is an acute worsening of patients with chronic liver disease resulting in liver failure. Usually these patients have cirrhosis as the underlying liver disease with alcohol being the most common etiology. Common hepatitic illnesses causing acute worsening in Indian patients of ACLF include alcoholic hepatitis, acute viral hepatitis related to hepatitis E virus and acute flare in chronic hepatitis B. We report an adult case of ACLF due acute viral hepatitis related to hepatitis A virus infection superimposed on nonalcoholic steatohepatitis without cirrhosis.