The Adi Dravida, Pallan, Paraiyan (or Parayan), and Arunthathiyar sub-categories within the Scheduled Castes represent 12.5 million out of the 14.4 million members of the Dalit community in Tamil Nadu.
?The 2011 census lists 70 other Scheduled Caste sub-categories, many of which have smaller populations.
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?According to a Business Standard analysis of census data, there are sizeable variations in education levels and employment within Tamil Nadu.
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?These figures are particularly relevant in light of the recent Supreme Court ruling allowing states to develop reservation policies for individual sub-categories within the Scheduled Caste community.
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