 Table 1 is the distribution of population of each Religion by Caste Categories, obtained from merged sample of Schedule 1 and Schedule 10 of available data from the National Sample Survey Organisation 55th (1999–2000) and 61st Rounds (2004–05) Round Survey The Other Backward Class (OBCs) were found to comprise 52% of the country's population by the Mandal Commission report of 1980, a figure which had shrunk to 41% by 2006 when the National Sample Survey Organisation's survey took place.There has been criticism of the caste system from both within and outside of India.Since the 1980s, caste has become a major issue in the politics of India.