This thesis examines the Nation Building process in South Africa after the demise of Apartheid era. It has primarily analysed, assessed and evaluated the performances of ANC Governments under Mandela, Mbeki and Zuma from the perspective of Nation Building process in the country. The study throws light on the different factors that have been affecting the Nation Building process in South Africa. This study explores a brief historical analysis by uncovering the conditions faced by the South African society during Apartheid era, ethnicity and race relations, how did apartheid programme the collective psyche of the people of the land, its implications in the Post-Apartheid phase of the country and the outcomes affecting the integration process of the segregated society. This work has highlighted the dream of the founding fathers in the Nation Building of South Africa, making of the constitution and its provisions supporting a consociational democratic culture favourable for the Nation Building process. At the same time the study also presents how ethnic struggle for domination in party politics affected the idea of Nation Building, Xhosa Zulu tussle, corruption, nepotism, injustice, inequalities, political repression, human rights abuses, police brutality, extra constitutional measures taken by law enforcing agencies and political institutes, disgruntled and dissatisfied masses all contributed in the creation of a chaotic environment not conducive for the Nation Building process.