Carcinosarcoma is a very rare, aggressive malignant neoplasm of the uterus and it is  associated with poor prognosis. We are presenting a case of a 66-year-old multiparous  postmenopausal women who had bleeding for a period of 3 months. On MRI Imaging  there is a 6 cm lesion in the endometrial cavity, biopsy from the endometrium  showed carcinosarcoma and she underwent extrafascial hysterectomy with bilateral  slapingoophorectomy, omentectomy, and retroperitoneal lymph node dissection.  Postoperatively ascites is positive for malignant cells, histopathology of specimen reported  as carcinosarcoma FIGO grade 3 and lymph nodes are positive for malignancy. She received  adjuvant chemotherapy with carboplatin and paclitaxel.