The coexistence of Gastrointestinal stromal tumor (GIST) and colorectal adenocarcinomas has been rarely reported in the literature.We hereby report a case of 58 year old male presenting with chief complaints of constipation and malena who was diagnosed and operated primarily for colonic adenocarcinoma and synchronous occurence of GIST was found in ileum and confirmed on histopathological examination. To our knowledge synchronous occurrence of these two tumours is reported for the first time in north india.