Adjuvant to local anaesthesia increases the efficacy and the duration of the block. Inj Clonidine recently gaining more popularity as an adjuvant to local anaesthetic agents for neuraxial and peripheral nerve blocks. In this study, we compared two groups Lignocaine with adrenaline and lignocaine with clonidine in post auricular block in patients posted for tympanoplasty. 60 American Society of Anaesthesiologists ASA 1 and 2 patients posted for tympanoplasty were randomly allocated in 2 groups in which group A (control group) received 10ml solution of xylocaine with adrenaline (1:200,000 dilution) and 2ml of normal saline and group B (study group) received 10ml of adrenalized xylocaine with 30mcg of clonidine in 2 ml of normal saline. Total volume of drug is similar in both the groups. Hemodynamic variables, oxygen saturation, level of analgesia were monitored in the intraoperative period. Incidence of postoperative nausea, vomiting, duration of analgesia, and other side effects was monitored till 24 hours after surgery. Duration of the block was significantly prolonged in group B. visual analog scale VAS scores were significantly lower at all times in group B as compared to group A. From this study we conclude that when 30mcg clonidine added to Xylocaine for post auricular nerve block proved to be more effective in providing analgesia introperatively and also postoperatively up to 6 hours. Interestingly the incidence of post-operative nausea vomiting was also lower in the clonidine group although it has no effect on the onset of analgesia.