Pregnancy is a unique, exciting and often joyous time in a woman’s life, as it highlights the woman’s amazing creative and nurturing power.  This amazing experience need to be planned well in advance which emphasizes the significance of preconception care[1]. Materials and methods: Research design used for this study was pre experimental one group pre test post test design. 30 undergraduate students belonging to the age group of 18-24 years were selected using non probability convenient sampling technique from an Arts College, Thripunithura. The tool used for data collection consisted of two parts. Part A included demographic profile and part B was a structured questionnaire which comprised of two main sections namely (1) pre pregnancy check up and (2) pregnancy including family planning. Pre-test was done which was followed by a structured teaching programme five days prior to the post-test. The pre-test and post-test values were compared by using paired t-test.  Result: The findings showed that the mean post test knowledge score of the subjects 33.26 was higher than the mean pre-test score of 26.36. The calculated “t” value obtained from paired ”t” test was 34.6 which is significant at P£ 0.05 level showing that there is improvement in knowledge of under graduate students. The results of chi-square analysis indicated that there was no significant association between knowledge and demographic variables. Conclusion: The research conducted on undergraduate students of a selected college revealed that there was significant lack of knowledge regarding pre-conception care among the undergraduate students and the structured teaching programme had a remarkable role in improving their knowledge.