Background: Childbirth is an intense event and strong emotions both positive and negative can be brought to the surface. Labour is a process, where women give birth to the child. The most wonderful moment in women’s life is during labour, as most women and their families experience greatest excitement during labour. The anticipated period of uncertainty, anxiety and fear, ends with beautiful birth of the baby. Clearly, the support and care they receive during this time is critical. Childbirth is a divine process and women should be supported during labor. Thus the overall aim of caring for women during labour and birth is to engender, a positive experience for the women and her family, while maintaining their health, preventing complications and responding to emergencies promptly. Aim: To assess the effectiveness of safe delivery application among final year nursing students in JINS, Kolkata. Objectives: 1. To assess the pre and post-test knowledge score of safe delivery application. 2. To find association between pre-test knowledge score of nursing students with selected demographic variables. 3. To compare mean pre-test and mean post-test knowledge score before and after utilisation of safe delivery app. Materials: A total of 50 subjects were chosen for the study. The instrument used to generate necessary data were structured questionnaire for knowledge assessment. The research design selected for the study was pre-experimental research design. It consists of 6 questions from demographic variables and 45 questions for the knowledge assessment. The study was concluded at the Jagannath Gupta Institute of Nursing Sciences, Budge-Budge, Kolkata. Result: The mean post-test knowledge score 34.255 was higher than the mean pre-test knowledge score 22.72. The mean difference between post-test and pre-test knowledge score was highly significant. In pre-test median was 23 and standard deviation 2.983. In post-test median was 35 and standard deviation was 2.726. Conclusion: The study has shown that majority of the subjects had inadequate knowledge regarding the usage of safe delivery application however the knowledge has significantly improved after that administration of structured education through Safe Delivery Application. Hence it was concluded that structured education about safe delivery application improved the knowledge of subjects.