Nagi, former Development and Finance Commissioner, took over the new assignment on Friday, the day of Krishna's retirement.
The state government has also effected a major administrative reshuffle by appointing Gamli Padu as food and civil supplies secretary, R K Mishra as education secretary, Sanjoy Goel as cultural affairs secretary and Nani Mali as transport secretary, an official order said here today.
The government also appointed Dr Brij Mohan Mishra as Kuruung Kumey deputy commissioner, Dr Joram Beda as health & family welfare special secretary, East Siang DC Nidhi Srivastava as project director of Sarva Shiksha Abhiyan.
Commissioner K R Meena has been relieved of his additional charge of education commissioner, but he would continue to hold the charges of personnel, transport and administrative reforms commissioner as well as commissioner to the CM, the order said.