Background: Fracture femur isthe most common long fractures due to accidental fall and road traffic accidents. Moreover , patients suffer agonising pain pre operatively and post operatively . therefore in our study we compare the efficacy of Fascia Iliaca Compartment Block (FICB) with 0.25%ropivacaine and 0.25% levobupivacaine for pre operative analgesia before subarachanoid block and its effect on post operative analgesia. Objective: To compare the efficacy of FICB with 0.25% bupivacaine and 0.25% ropivacaine in pre operative analgesia and its effect on post operative analgesia. Methods: Under aseptic condition , with 18G Tuohy needle local anesthetics was injected into a point 1cm below the medial 2/3rd and lateral 1/3rd of the line joining the anterior superior iliac spine and pubic tubercle1,2,3. Just after feeling of 2 pops below fascia lata and fascia illiaca , the drug was deposited after negative aspiration. Result: VAS score between 2 groups for pre operative analgesia was significant (p value <0.05) with 0.25% levobupivacaine group having lesser VAS score than ropivacaine group. Moreover VAS score for post operative analgesia was comparable and not significant (p value> 0,05). Conclusion: it was concluded that 0.25% levobupivacaine in FICB provide better analgesia pre operatively and both levobupivacaine and ropivacaine provide comparable analgesia post operatively