IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-9-11-32045 Original Research Paper A COMPARATIVE ANALYSIS OF INTRATHECAL NALBUPHINE HYDROCHLORIDE WITH HYPERBARIC BUPIVACAINE 0.5% AND HYPERBARIC BUPIVACAINE 0.5% ALONE IN PATIENTS UNERGOING LOWER ABDOMINAL SURGERIES Trilokchand Dr. Dr Arpita Saxena Dr. November 2020 9 11 01 02