P. Sathasivam — Indian Judge born on April 27, 1949,

Palanisamy Sathasivam is the current Governor of Kerala, in office since 2014. He previously served as the 40th Chief Justice of India from 2013 to 2014. Sathasivam is the second judge from Tamil Nadu to become the CJI. He is also the first former Chief Justice of the Supreme Court to be appointed as the Governor of a state... (wikipedia)

There are checks and balances and broad separation of powers under the Constitution. Each organ of the State, i.e. the legislature, the executive and the judiciary, must have respect for the others and not encroach into each other's domain.
As a practising lawyer, I was mediocre, but I worked hard as a law officer of the state government and on the private side. After becoming a judge, I maintained a low profile in other activities and concentrated only on judicial work.