OBJECTIVE– Study of recurrence and pattern of recurrence in Stage III epithelial ovarian cancer. METHODOLOGY – A prospective observational, study was conducted at a tertiary hospital in Bangalore, India from April 2017 to April 2019. Informed and written consent was taken before including the patient in the study. All patients diagnosed with stage III epithelial ovarian with no residual disease following cytoreductive surgery (primary, interval and secondary) with or without Hyperthermic Intraperitoneal Chemotherapy (HIPEC) were included in the study. Patients were followed every 3-6 months up to maximum period of 24 months from the date of surgery. Last date of follow up was on 30/04/19. During follow up patient symptoms, physical examination and serum CA-125 were recorded to detect recurrence. If patient symptoms, physical examination and rising serum CA-125 are suggestive of recurrence, imaging in form of CECTabdomen/ PETCT was done for detection of recurrence. Patients were monitored for two types of recurrence. Biochemical recurrence dened as rising CA125 in absence of clinical evidence of recurrence either by physical examination or by imaging. Clinical recurrence dened as recurrence in any part of body noted on physical examination or imaging and then proving it by biopsy with or without rise in serum CA-125.Site of rst recurrence was recorded. RESULTS- A total of 84 patients were included in the study. 45 patients underwent interval, 25 patients underwent primary and 14 patients underwent secondary cytoreductive surgery. Mean duration of follow up was 18.25 months. 4 patients lost follow up. 2 patients died following surgery. Recurrence was noted in 14 patients (16.66%). Clinical recurrence was noted in 13 patients (15.47%) and biochemical recurrence was noted in 1 patient (1.19%). 8 patients had recurrence in peritoneal cavity (57.14%). 1 patient each had recurrence right inguinal lymph node, paraaortic lymph node+ peritoneum, left iliac lymph node, left supraclavicular lymph node and left inguinal lymph node. CONCLUSION – In this study clinical recurrence was more common than biochemical recurrence. Peritoneal cavity was most common site for recurrence. This study shows importance of optimal cytoreductive reductive surgery in preventing recurrence in carcinoma ovary as peritoneal cavity is most common site of recurrence