Officials said the poll panel was not satisfied with the reply of Ghosh, who was show-caused earlier, following which the decision to censure him was taken.
It was alleged that Ghosh had openly threatened Trinamool Congress workers at a rally in Kharagpur, from where he was fighting in the recently concluded state Assembly elections.
Polling for all the six phases have ended on May 5 and counting will be taken up on May 19.