This would restore the six member strength of the ministry, Rajnivas sources told PTI.
Lt Governor Lt General (retired) A K Singh will administer the oath of office and secrecy to Siva at a ceremony in Rajnivas here tomorrow.
The Chief Minister had a six member team since the formation of the government in 2011. But the then Education Minister P M L Kalyanasundaram was mired in a case in connected with the SSLC public examination and he was removed from the cabinet in November 2011.