Introduction: Shivering is a physiological response due to thermoregulatory mechanism to cold which is an involuntary, muscular twitching. It is usually observed during spinal and epidural anaesthesia administration. Surgery causes heat loss due to exposure to environment, evaporation of body heat and infusion of intravenous fluids which causes reduction in core body temperature. There is reduction in core body temperature due to altered afferent thermal input from the blocked region This study was done to evaluate the efficacy of granisetron and butorphanol to control shivering intraoperatively who undergo spinal anaesthesia. Methods: This study included 62 adult patients ,31 patients in group G and 31 patients in group B. Patients with American society of Anaesthesiologists (ASA) physical status I and II, aged 20-60 years, either gender who were scheduled for lower abdominal surgeries under spinal anaesthesia were included in the study. Vital parameters and grades of shivering were observed. Results: We observed onset of action of butorphanol was within 3-5 minutes while it took 5-7 minutes for granisteron to provide relief from shivering, making the time of onset of action statistically significant. There was significant statistical difference in Heart rate between two groups at 5mins 10mins and 30 mins. There was difference between Mean arterial pressure (MAP) between both groups at 10mins and 30mins was also found to be significant statistically. Conclusion: The incidence of tachycardia, hypotension and vomiting was significantly higher with butorphanol when compared to Granisetron. Butorphanol onset of action was faster with mild sedative effects .Thus Granisetron is superior to butarphanol in controll of shivering.