Stability of the knee depends on the integrity of many structures, anterior cruciate ligament (ACL) being one of the most important of them. For young active individual, a symptomatic ACL deficient knee can cause significant problem in high–stress activities of the knee. In those, ACL reconstruction (ACLR) is the treatment of choice. This study assesses the functional result of 39 cases of ACLR. In the period between January 2011 to March 2014, a total of 46 knees in as many patients were treated by soft–tissue ACLR using autogenous, ipsilateral, free semitendinosus and gracilis (ST–G) tendon grafts. 39 could be followed up for at least 3 years (3yrs 1 month to 5 years 3 months). The results at the latest available followup of these patients were analysed to know the functional outcome of the surgery. Overall, excellent to good results were obtained in 92% of the patients at that point of time. Therefore, it can be inferred that ACLR is an effective treatment of the unstable ACL deficient knees. The published literature also supports this finding.