The Act also provides for special reservation in appointments or post in services under the state within the reservation for Scheduled Castes.
The second bench, comprising justices Satish K Agnihotri and K K Sasidharan, acting on a petition by advocate G Saravana Kumar belonging to Scheduled Caste, directed the Secretaries of Departments of Home, Law, Adi Dravidar and Tribal Welfare, Personnel and Administrative Reforms, TNPSC, and Registrar General of the Court and the Chief Secretary to submit a reply within four weeks.
He also contended that nobody has the right to alter or modify the basic structure of the Constitution.
He alleged that the Act introduced by the Tamil Nadu government divides castes in the Presidential list of Scheduled Castes community into two groups -- Arunthathiyars and Non-Arunthathiyars.
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Any modification of the existing order could be done only by the President, he said.
He prayed for a direction from the court to declare the Act as null and void, saying it is ultra vires of the Constitution.