Stress management involves a range of strategies and techniques to effectively cope with and reduce stress. These strategies can include lifestyle changes, relaxation techniques, and seeking professional help when needed. Stress can be managed through various methods, including adopting healthy habits, engaging in regular physical activity, and practicing relaxation techniques like meditation or yoga.The objectives is to evaluate the effectiveness of structured teaching programme (STP) regarding stress management among undergraduate students in selected colleges of Aizawl, Mizoram. Material and Method: Quantitative research approach, pre-experimental one-group pre-test post-test design was used. Data was collected from 100 undergraduate students in selected colleges of Aizawl, Mizoram. The collected data was analysed using SPSS version 20. Result: Findings of the study reveals that out of 100 participants 26 (26%) had inadequate knowledge and 26 (26%) had moderate knowledge in the pre-test knowledge regarding stress management. Whereas in the post-test, out of 100 participants majority i.e. 99 (99%) had adequate knowledge and 1 (1%) had moderate knowledge regarding stress management. There was significant association between the pre-test knowledge score of the undergraduate students with selected demographic variables such as gender (p=5.99) and type of family (p=5.99) among undergraduate students at 0.05 level of significance (p=0.05). Thus, the research hypotheses were accepted. Conclusion: The result shows that the structured teaching programme was found effective on knowledge regarding stress management among undergraduate students in selected colleges of Aizawl, Mizoram.