In paediatric patients, caudal anaesthesia has proven to be a dependable and efficient anaesthetic treatment. However, the short half-life of the local anaesthetic drugs used in caudal block has been addressed by the use of adjuvants in clinical settings. Objectives: To compare the analgesic efficacy of Fentanyl and Dexamethasone as an adjuvant to caudal Ropivacaine in paediatric patients undergoing elective infra-umbilical surgery. Methodology: Seventy patients were divided into two groups of 35 each. Group A was given 0.25% Ropivacaine along with Fentanyl at 2mcg/kg while Group B was given 0.25% Ropivacaine at along with Dexamethasone at 0.1mg/kg. Results: In Group A, the mean duration of analgesia was 559.43 mins while in case of Group B it was 979.09 mins. The Face, Legs, Activity, Cry, Consolability (FLACC) score was always more in Group A compared to group B with it being significant at 2hr, 3hr, 4h, 5hr, 6hr and 8hr respectively with a p value of 0.04, 0.001, 0.05, 0.029, 0.012 and 0.062. Conclusion: It can be concluded that 0.1 mg/kg of dexamethasone added to 0.25% ropivacaine concentration was more efficacious compared to fentanyl in prolonging the duration of analgesia.