Background and aim: Knee surgeries require adequate post operative pain management. Adductor canal block (ACB) is a relatively new block with promising results. This study aims to evaluate the effect of USG guided ACB in post-operative analgesia for knee surgeries. Methods:This randomised prospective study was conducted among 65 adult patients undergoing knee surgery, were grouped into A and B. Both the groups received Inj Paracetamol 15mg/kg TDS post-operatively for pain management. In group B, post-operatively, USG guided ACB with placement of catheter and intermittent doses of 0.25% Levobupivacaine (20ml) was given. Patients were assessed for pain in Numerical Rating Scale (NRS) till 48 hours. On NRS >4, Inj. Tramadol 50mg IV was given for both the groups. The desired outcome was to achieve adequate analgesia and active and passive movements in knee joint post operatively at the end of 48 hours. Results: The mean score on NRS at various time intervals till 48 hours was found to be significantly lower than the group A (p value <0.005). Mean of numbers of tramadol doses in 48 hours was significantly more among group A compared to group B (p value 0.041). It was also observed that at the end of 48 hours patients in group B were able to perform knee movements (active and passive flexion) better than group A patients (p value<0.005). Conclusion: The study showed that adductor canal block with intermittent doses of local anaesthetic provides good analgesia with reduced requirement of opioids after knee surgeries. It also promotes early ambulation due to its motor sparing effect.