Nkn Rao, born on January 5, 1949, is a retired Indian Administrative Service officer from the 1983 batch, Andhra Pradesh cadre. He holds degrees in Chemistry and Law (LL.B.). Throughout his career, he served in various capacities including Secretary, Vice Chairman & Managing Director, Commissioner, Director, District Collector and Magistrate, Deputy Secretary, Managing Director, Additional District Magistrate, Project Director, Assistant Secretary, Sub-Divisional Magistrate, and Administration Officer. His most recent position was Commissioner in the Rural Development Department from October 19, 2002, to January 14, 2004.