The anterior knee instability due to tear of the ACL is an important clinical problem. The intrinsic repair capacity of ACL is very poor. The patients with knee symptoms of ACL deficiency, must consider ligament reconstruction for stabilizing the knee joint for achieving better function of the knee joint. Our study is designed for analyzing the outcome of arthroscopic ACLR with hamstring autograft fixed in femoral tunnel using endobutton and in the tibial tunnel using interference screw and additionally anchored with a cancellous screw or suture wheel if necessary. The Lysholm Knee Scoring Scale comprised of eight parameters for evaluation. The parameters evaluated are– limp, use of support on walking, locking episodes, instability, pain, swelling, stair climbing and squatting. All patients had instability of knee in the formof giving way evaluated by Lachman test and confirmed by arthroscopy. ACLR reduces postoperative morbidity and enables early rehabilitation The functional outcome of anterior cruciate ligament reconstruction with quadrupled hamstring autograft is excellent to good (80%) with mild laxity at the end of 6 months. 67% of the patients were able to return to pre injury level of activity