Despite great achievements made in modern science and technology, the nutrition situation of children of under five years in south Asian countries is not satisfactorily improving. The governments and non-governmental organizations [NGO¿s] are implementing a number of community-based nutrition interventions to reduce the malnutrition among the children. Are they adequate to achieve the country goals in child nutrition? What are the limitations that are hindering realisation of the goals? What are the positive aspects and success stories of the interventions that might be replicated by other organizations, and governments of those countries and states with similar challenged? What should the governments and NGOs do to reduce malnutrition across the south Asian region especially in Nepal, India, Bangladesh and Sri Lanka? This dissertation submitted to the Bournemouth University attempts to find the answers to these questions. The dissertation has been produced as a result of a long period of study, and the supervisors of the study Prof. Edwin van Teijlingen and Dr. Eleni Maunder have contributed strongly to my desire of setting a new mile stone in South Asia.