Objective: Diagnoses of endometriosis are based on observation of endometriotic lesions by means of laparoscopy, along with the pathological findings. The aim of this study was to evaluate the sensitivity and specificity of the laparoscopic findings in relation to the histopathological findings. More specifically, we aimed to test the efficacy of laparoscopy alone for diagnosing endometriosis and to evaluate the clinical parameters of endometriosis among the study population. Material And Methods: A retrospective study on 90 women undergoing diagnostic and operative laparoscopy for evaluation of pelvic pain and/or infertility, at Manchanda’s Endoscopic Centre, PSRI hospital, New Delhi, between 2013 and 2016. All areas suggestive of endometriosis on laparoscopy were excised and examined pathologically. The positive predictive value, sensitivity, negative predictive value and specificity were determined for identified endometriosis versus the histological findings. Results: The mean prevalence of abnormalities visually consistent with endometriosis was 73.3% while 65.5% confirmed histologically. Taking the histopathological findings to be definitive for the diagnosis of endometriosis, the clinical suspicion and laparoscopic findings presented 97.68% sensitivity, 79.23% specificity, 72% positive predictive value, 98.42% negative predictive value, and 85.75% accuracy. Conclusion: Laparoscopy should be used in conjunction with histopathology for diagnosing endometriosis.