Background: The present study was conducted for assessing the association of the lateral meniscus tear with high grade anterior cruciate ligament. Materials & methods: A total of 80 patients were enrolled. Complete demographic and clinical details of all the patients was obtained. Radiographic examination was done and detailed information in relation to primary ACL reconstruction was recorded on separate Performa. Inclusion criteria for the present study included patients with isolated high grade ACL lateral meniscus tears. On the basis of arthroscopic appearance of the lateral meniscus, patients were divided broadly into three study groups: ‘no tear,’ ‘minor tear,’ and ‘major tear.’ All the results were recorded in Microsoft excel sheet and were subjected to statistical analysis using SPSS software. Univariate analysis was performed for analysis of level of significance. Results: A total of 80 subjects were enrolled. 37.5 percent of the subjects showed no tear while 21.25 percent of the subjects showed minor tear. 31.25 percent of the subjects showed major tear. While analyzing the results with univariate analysis, gender, age and mechanism of injury were found to be significant factors affecting tear severity. Conclusion: Male gender, advancing age, and especially subjects who sustained a contact injury have a high risk for an associated major lateral meniscus tear.