Diverticulum of the cecum is a rare, benign, generally asymptomatic lesion that manifests itself only following inflammatory or hemorrhagic complications. The majorities of cecum diverticulitis are developed in the frontal surface of the colon and are usually asymptomatic. Indeed, it is almost always diagnosed during surgical intervention rather than preoperatively.Here I present a case of a 40 yr. male patient presented with abdominal fullness with discomfort since last 12 yr. CECT abdomen suggestive of gross dilatation of caecum with coffee bean or whirl loops sign suggest p/o caecal volvulus. So, we do exploratory laparotomy and incidentally found 35 cm. long caecal diverticulum. So, we do excision of that diverticulum with appendicectomy and closure of caecal stump done.