Acting Chief Justice of Jharkhand High Court Aparesh Kumar Singh administered the oath of office and secrecy to Radhakrishnan, 65, at a ceremony attended by Chief Minister Hemant Soren, cabinet ministers, MPs and MLAs.
Radhakrishnan, a two-time Lok Sabha member from Coimbatore, succeeded Ramesh Bais, who served as the Governor of Jharkhand since July 2021.