57-year-old Spolia succeeded Praveen Kumar Tripathi, who was made Chief Secretary in April last year, retired today.
An IAS officer of AGMUT cadre, Spolia was holding charge of Principal Secretary, Finance.
Asked about his priority, Spolia said ensuring good governance will be his goal.
Tripathi, meanwhile, has been made Chairman of the Public Grievance Commission. He has also been appointed as adviser, innovation and reform, to the government.