Aim: To study the “comparision of intrathecal 0.75% isobaric ropivacaine with fentanyl and 0.5% hyperbaric bupivacaine with fentanyl in urologicl surgeries-TURP, TURBT, VIU” was done to evaluate effects of adding Fentanyl to Ropivacaine and Bupivacaine with regard to onset of sensory, motor blockade and time for maximum onset of sensory and motor blockade and two segment recession and duration of sensory and motor blockade. Methodology: In patients, posted for Urological Surgeries, in Osmania general hospital, Hyderabad were chosen for the study. Sixty patient’s aged 20-60 years belonging to ASA I and II undergoing elective Urological surgeries-TURP, TURBT, VIU were randomly allocated for study (n=30) in each group. Group R (Ropivacaine) includes patent’s receiving intrathecally 0.75% Isobaric Ropivacaine 10 mg with 15 mcg Fentanyl. Group B (Bupivacaine) includes patent’s receiving intrathecally 0.5% Hyperbaric Bupivacaine 10mg with 15 mcg Fentanyl