Sources said the final approval from the Appointments Committee of the Cabinet (ACC) has been received and the Finance Ministry will soon issue orders in this regard.
Tewari, a 1976-batch Indian Revenue Service officer, is at present posted as the Member (Legislation and Computerisation) in the CBDT and will take over the top post on March 1 as incumbent Chairperson Sudha Sharma is scheduled to retire on February 28.
Tewari has earlier served in various positions in the I-T department including as a Chief Commissioner in the national capital.