He will take over from N Sathishkumar, who has been elevated as a judge of the high court.
A notification to this effect was issued by the Madras High Court today.
Sakthivel is now the Administrator General and official trustee of Tamil Nadu.
Meanwhile all three judges N Sathishkumar, N Seshasayee and R M T Teekaaraman, who were appointed as high court judges, will take oath of office on Wednesday morning.
Chief Justice Sanjay Kishan Kaul will administer the oath of office to them.
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