Menstrual health education is crucial during adolescence, as it not only empowers young girls with the knowledge to manage their menstrual health effectively but also fosters a positive attitude towards their bodies and menstrual cycles. Incorporating video-assisted teaching modules can offer an interactive and visually stimulating platform to deliver educational content. A study to evaluate the effectiveness of VATM on knowledge regarding the importance of menstrual aliments among teenage girls at selected colleges Kanpur, Uttar Pradesh. 60 samples were collected by using non-probability convenience sampling technique through structured knowledge questionnaire the data collected and analyzed by descriptive and inferential statistics. The result of the study showed the post-test mean (17.78) was high when compared to the pre-test mean (13.75) score of knowledge. The obtained "t" value (10.35) was greater than table value & df59 which was p>0.05 level of significance, which show that there are significant differences between pre-test and post-test level of knowledge hence the formulated research hypothesis H₁ was accepted and H01 was rejected. The test revealed that there was no significant association of knowledge with selected demographic variables such as age, religion, family monthly income, type of family, source of information and type of food and there were significant association with educational qualification, previous knowledge, age of menarche and family history. The study concluded that video assisted teaching module was effective and improves knowledge regarding the importance of yoga in dealing with menstrual aliments among teenage girls at selected colleges, Kanpur, Uttar Pradesh.