An official release here said it was a "courtesy call."
Ministers including P Thangamani, S P Velumani, C Ve Shanmugam and D Jayakumar accompanied Palaniswami.
Palaniswami presented a bouquet to Governor Rao and held a brief discussion with him, the release said.
His government had won vote of confidence by a margin of 122-11 in the assembly yesterday.
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