The major disturbances among the menstrual disorders are seen in the form of irregular cycles which has been emphasized by many medical interviews ranging from 5-16%.[3] Most of the adolescents presenting with irregular cycles are associated with PCOS whose incidence is estimated to be between 11 & 26 %[9] and about 50% are overweight. These problems improperly addressed during adolescence may result as cause for infertility in the married women. Hence this study was carried out to investigate the awareness on current issue in college going adolescent girls. A cross sectional study was conducted on 209 girls. A self-administered questionnaire consists of the questions on awareness, knowledge on menstruation & PCOS is used for data collection. The mean age of respondents was 17.5yrs and the mean age attained at menarche was 13.5 yrs. Data revealed that there is general lack of awareness about knowledge on menstrual cycles in 48-50% of the adolescents. Most of them (60%) are not aware of the condition Polycystic Ovarian Syndrome though they are presenting with its clinical features. Hence there is need to educate the adolescents about the normal menstruation and the most prevalent disorder called Polycystic Ovarian Syndrome.