Introduction: Spinal anesthesia is the most commonly performed anesthetic technique for lower limb, abdominal, perineum surgeries. It has been seen that multiple drugs are being added to the local anesthetics in subarachanoid blockade which results in better haemodynamic stability, increased duration of surgical analgesia and even provide post operative analgesia. Here we did a case series of adding intrathecal dexmedetomidine to hyperbaric bupivacaine in cases which were posted for infraumbilical surgery and lasted for more than 2 hours. Even two cases lasted for more than 5 hours were done comfortabily with addition of dexmedetomidine.Dexmedetomidine is a selective alpha 2 adrenoceptor agonist which can be used in low doses and it prolongs sensory block in a dose dependent manner without major haemodynamic effects. Patient also had significant post operative analgesia which reduced the requirement of rescue analgesia and also resulted in early recovery of the patient.