Other Backward Class (OBC) is a collective term used by the Government of India to classify castes which are socially and educationally disadvantaged. It is one of several official classifications of the population of India, along with Scheduled Castes and Scheduled Tribes (SCs and STs). The 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 y 2006 when the National Sample Survey Organisation took place.