Soji Eniade, the Head of Service (HoS), told journalists in Ibadan on Wednesday that the dismissed workers were identified after a thorough verification exercise.
The News Agency of Nigeria (NAN) reports that the 662 affected workers include 305 from the local government service, 152 from MDAs and 149 from the Teaching Service Commission.
Twenty-eight others are from parastatals, 26 from higher institutions of learning and two from the State Universal Basic Education Board (SUBEB).
Mr. Eniade said the State Executive Council had, at its last meeting, discussed the need to restructure the civil and public service of the state in terms of quality and quantity.
“In terms of quantity, we want to have the right size or figure of civil and public servants in the state institutions, and our intention is to have institutions without ghost workers,” he said.
To achieve the objective, he said the state government re-engaged the services of a consultant who had earlier and excellently performed the same exercise in 2008.
He said the exercise was a normal organisational check aimed at improving the quality of service in the state.