Ramu, an 8-year-old boy presents with upper GI bleeding. On examination, he is found to have splenomegaly; there are no signs of ascites, or hepatomegaly; esophageal varices are found on UGIE. Most likely diagnosis is:

Clues in this question are: Upper GI bleeding, splenomegaly, no ascites or hepatomegaly, no jaundice: Non-cirrhotic poal fibrosis. About other options. Budd-chiari syndrome (Hepatic vein thrombosis) and venocclusive disease: Hepatomegaly, jaundice and ascites seen. Cirrhosis: jaundice and ascites will be seen.