Background: One of the significant challenges encountered in pelvic surgery is the accurate identification of pelvic structures. Spinal anesthesia is the most commonly used technique for lower abdominal surgeries as it is very economical and easy to administer. Hence; the present study was conducted for comparative efficacy evaluation of epidural bupivacaine fentanyl and bupivacaine-clonidine used in pelvic surgeries for post operative pain relief. Materials & Methods: A total of 100 patients were enrolled and were randomized into two study groups as follows: Group A: 50 patients - Epidural Bupivacaine- Fentanyl, and Group B: 50 patients - Epidural Bupivacaine- Clonidine. Complete demographic and clinical details of all the patients were obtained. Postoperative pain was assessed over 8 h using Visual Analogue Scale (VAS). The frequency of rescue analgesia, sedation score along with events like nausea, vomiting, shivering or pruritus were also recorded. All the results were recorded in Microsoft excel sheet and were subjected to statistical analysis using SPSS software. Results: Mean age of the patients of group A and group B was 41.8 years and 43.9 years respectively. Majority proportion of patients of both the study groups were males. Significant proportion of patients of both the study groups were of ASA grade II. Mean VAS was significantly lower among patients of group B in comparison to patients of group B. Mean duration of analgesia was 432.8 mins among patients of group A and was 456.5 mins among patients of group B. Conclusion: Clonidine is a superior option as an adjunct to epidural bupivacaine hydrochloride for postoperative pain management due to its ability to extend the duration of analgesia. Key words: Bupivacaine, Clonidine, Pelvic. This is an open access journal, and articles