Former Chief Secretary K. Shanmugam, who was in January appointed as the Advisor to the State government resigned from his post on Monday.
In a communication to the Public Secretary, Mr. Shanmugam cited personal reasons behind his decision.
His resignation comes against the backdrop of a change in government in Tamil Nadu following the DMK's victory in the Assembly elections.
Last year a delegation of DMK leaders led by T R Baalu had claimed that Mr Shanmugam as Chief Secretary did not treat them appropriately when they met him to submit petitions.
