Global Competence is the ability to examine local, global and intercultural issues, ability to understand and appreciate diverse perspectives and world views, ability to have successful and respectful interaction with people and to take responsible action towards sustainability and collective well-being. The main aim of the research was to analyze the impact of an intervention program. For the present study the researcher has used experimental method. The design selected for the study was quasi experimental Pre-test – Post-test Non- Equivalent Group Design. The sample consist of an intact class of grade IX school students. The Control group and Experimental group were both from Government aided English medium schools from Mumbai, Maharashtra. The tools used for the study was Global Competence scale, designed and tested for validity and reliability. The reliability score of Cronbach’s alpha was found to be 0.93 which is considered to be a good score. The result of the study shows a significant difference in the post-test of control group and experimental group on global competence for sustainability. The findings of the study reveal no significant difference in the pre-test scores of control group and experimental group on global competence for sustainability but still greater mean scores of experimental group proves that students of experimental group were more globally competent compared to students of control group. The study also shows a moderate effect of intervention program on the dependent variable.