Introduction: A comparative clinical study was conducted to evaluate the effect of intrathecal levobupivacaine and bupivacaine in patients with infraumbilical surgeries under spinal anaesthesia. We sought to evaluate the the onset of time sensory and motor block, haemodynamic changes during intraoperative and postoperative period and its complications. Methods: In this prospective randomised double-blind study, 60 American Society of Anesthesiologists grade I and grade II of either sex, 20-65 years of age were enrolled. They were randomly divided into two groups of 30 each. Group B received 0.5% bupivacaine 3ml intrathecally and Group L received 0.5% levobupivacaine 3ml intrathecally. Sensory and motor block, duration of analgesia, haemodynamic changes during intraoperative and post-operative period and its complications were assessed. Results: The onset of sensory block was rapid in Group B (4.33+/-1.99 min) in comparison to Group L (4.46+/-2.38) which was statistically insignificant. Maximum level of sensory block achieved was T6 in both groups. The duration of sensory block was longer in Group B (134+/-18.86 min) in comparison with Group L and (143+/-20.36 min). The duration of motor block was also more in Group B(184+/-33.17 min) in comparison with Group L (175+/-27.38). Conclusion: Intrathecal administration of 0.5% levobupivacaine provides almost same amount of sensory and motor blockade achieved with bupivacaine. Haemodynamically levobupivacaine is more stable than bupivacaine during intraoperative and postoperative period with lesser complications.