Mittal, succeeds Sunil Arora, who retired on April 30.
(REOPENS DES 24)
During a career span of more than 33 years, Mittal has served in various capacities in his cadre state of Himachal Pradesh.
He served as Additional Chief Secretary in various departments including Information and Public Relations, Finance, Vigilance, Coordination and Public Grievances to the HP Government, a statement said.
He was also the Chairman of Himachal Pradesh State Electricity Board.