Background: Disaster can be any occurrence that causes damage, ecological disruption, loss of human life or deterioration of health and health services on a scale sufficient to warrant an extraordinary response from outside the affected community or area. Emergencies and disasters do not only affect health and well-being of people but also large number of people are displaced, killed or injured, or subjected to greater risk of epidemics.

Objective: To evaluate the effectiveness of self- instructional module regrading disaster management among first year nursing students in terms of gain in knowledge score.

Methodology: The research design was pre-experimental, one group pre-test, post-test design. The sample size comprised of 100 first year nursing students selected by randam sampling technique.

Result: The results showed that most (81%) of the subjects in the pre-test had average knowledge whereas in the post-test majority of subjects (91%) had scored good knowledge.

Conclusion: The study concluded that the self-instructional module was found effective in increasing the knowledge regrading disaster management among first year nursing students.