Background: The term teratogenicity is defined as any morphological, behavioral or biochemical effect induced during embryonic life or fetal life detected at birth or later. the factors that lead to teratogenicity include both non-genetic and genetic factors. The objective of the present study was to assess the impact of educational interventions on the awareness of undergraduate medical students towards teratogenicityMethods: The present study was a questionnaire-based comparative observational study carried out at Department of Pharmacology and Therapeutics, Government Medical College, Jammu (J&K) for a period of three months from 1st November 2017 to 31st January 2018. The questionnaire was designed and validated by conducting pilot study on a sample of ten students. The questionnaire comprised of two main parts. The first part comprised of questions pertaining to the demographic profile of the students and second part consisted of questions assessing the students’ knowledge and awareness towards teratogenicity. The scoring of the assessment of the performance of the students regarding knowledge of various aspects of teratogenicity was done before and after the educational intervention and was compared using paired t-test.Results: A total of 134 second year MBBS undergraduate students participated in the study. Mean age of students was 19.32±0.82 years. In the present study it was found that before the educational intervention about 98.5% of the students and after the intervention all the students were aware of the term teratogenicity. About 69.4% of students knew about all the causes that lead to teratogenicity but after the intervention about 76.1% of the students knew about it. Also, the percentage of students who knew about the name of two teratogenic drugs and two teratogenic defects associated with drugs were only 31.3% and 22.3% respectively. After the educational intervention it increased to 61.9% and 52.2% respectively.Conclusions: In the present study, it was found that after the educational intervention, there was a significant improvement in the mean knowledge score of the students. This reflects the need of early exposure of students to this important issue of teratogenicity.