Understanding the primary reason(s) responsible for the conflict in Darfur under the larger backdrop of the Sudanese Civil War” is an attempt by the author to understand the ethnic conflict and the subsequent genocide in Darfur as a continuation of the larger Sudanese Civil War. The brutal civil war and genocide with its roots embedded in the post-colonial ethnic division raged in the country for more than fifty years. According to the UN figures, it resulted in more than three hundred thousand casualties. Flowing from the understanding of these religious, tribal, and geographical ethnic complexities in Sudan, which percolated from the divisive conflict between North and South Sudan to Darfur, the research paper also tries to understand the events in terms of comparing and analyzing it through two very prominent Ethnic Conflict Theories - Edward Azar's Protracted Social Conflict Theory, and Fredrik Barth's Boundary Maintenance Theory. Laden with chronological details, subsequent ethnic grievances, international intervention, and violent development of the conflict, complemented by the author’s analysis, this paper will be an enriching read for everyone, especially those who are experts or have considerable interest in Conflict Management, Ethnic Studies, and Peace Studies.