The first work to engage three mainstream International Relations theoretical perspectives -- Neorealism, Institutionalism and Constructivism -- as analytical tools to explore South Asian regionalism. Leading South Asia expert Bhumitra Chakma explains the politics of regionalism in South Asia and traces the origins and evolution of the South Asian Association for Regional Cooperation (SAARC) from its inception to the present day. He takes an International Relations perspective and engages three major IR theoretical approaches -- neorealism, institutionalism and constructivism -- to explain the complex dynamics of South Asian regionalism. Using comparative perspectives based on the experiences of similar regional organizations, the author provides an in-depth analysis of the challenges of cooperation in the region and explores how progress might be made in the future.