Background: Within the first 48 hours of the postpartum period, a postpartum woman can get postpartum intrauterine contraceptive devices (PPIUCDs), which are postpartum family planning options. The best time for women to use postpartum family planning techniques in the majority of poor nations is during birth, particularly for those who reside in rural and isolated areas. Objectives are to assess the pre-test and post-test knowledge and attitude regarding postpartum intrauterine contraceptive device among married women in reproductive age group, to implement and evaluate the effectiveness of structured teaching programme on postpartum intra uterine contraceptive device among married women in reproductive age group, to correlate the relationship between knowledge and attitude of postpartum intra uterine contraceptive device among married women.Methods: The Quantitative study was conducted utilising quasi-experimental one group pretest post-test design. 60 primi mothers were selected. Data was collected and analysed with descriptive and inferential statistics.  Results: The findings of the study indicated that, the post-test mean knowledge score was found higher than the pre-test mean. Calculated’ test value was 28.4 was more than the tabulated value.  Conclusion: This study revealed that health education was effective in improving knowledge regarding postpartum intra uterine contraceptive device.