Caudal block is the most common regional anaesthetic technique employed in paediatric patients. Major limitation to single shot caudal block is its short duration. Many adjuvants have been tried to prolong the duration of analgesia but each of them have their own sets of side effects. Dexmedetomidine, a highly specific α₂ agonist has been tried as an adjuvant through caudal and intravenous routes. Intranasal route of dexmedetomidine with a good bioavailability and similar duration of action as other two routes is still less explored. The current study is planned on fifty ASA 1,2 patients between the ages of one to seven years undergoing infra-umbilical surgeries under general anaesthesia. Upon fulfilling the inclusion and exclusion criteria the recruited patients, after an in depth pre anaesthetic check-up would be randomised into two groups where Group A (intervention group) would receive caudal block with 0.25% Ropivacaine (1ml/kg body weight) followed by intranasal instillation of dexmedetomidine (1mcg/kg body weight) and Group B (control group) would receive Caudal block with 0.25% Ropivacaine (1ml/kg body weight) followed by intranasal instillation of saline (similar volume to dexmedetomidine as per body weight) after induction of general anaesthesia. During the duration of surgery Heart Rate, Mean Arterial Pressure, Oxygen saturation and M.A.C would be monitored throughout and noted every 5 min until the completion of surgery. Upon completion of the surgery the patient would be extubated and will be shifted to PACU, where he/she will be monitored for a period of 6 hours. Upon extubation using the WATCHA score the patient would be assessed for post-operative delirium. In PACU Heart rate, Respiratory rate, Sp02 will be continuously monitored. Measurement of Pain and Sedation will be carried out at following intervals in PACU - 0 mins, 30 mins, 1 hr, 2 hr, 4 hr and 6 hr. Pain will be assessed using FLACC scale and Sedation will be assessed by Ramsey sedation score. Supplemental analgesia as fentanyl 0.5 mcg/kg will be given on self-reporting or when FLACC score > 3. The patients will be observed for 10 min and the dose will be repeated if there is still pain. The same dosage will be repeated in increments of 0.5mcg/kg till maximum of 2 mcg/hr. Total requirement of fentanyl will be noted. Duration of analgesia taken as time period between completion of caudal block and first analgesic administration will be measured. Any side effects like Bradycardia, Desaturation, PONV, excessive sedation, will be noted and treated throughout the period of study. Modified Aldrete score achieved at end of 6 hours will be noted where the study would conclude.