The backout came as a major embarrassment as, according to party insiders, she was to be the face of the BJP in the KMC polls and the party would have projected her as the mayor if it had won the KMC polls.
"As the state election commission is playing into the hands of ruling Trinamool Congress, they have hatched a conspiracy so that Roopa Ganguly cannot contest the polls. We condemn this. We have decided to replace Ganguly with another actress Sarbari Mukherjee," state BJP chief Rahul Sinha said.
Ganguly, who had become a household name in India after she played the role of Draupadi in megaserial "Mahabharata", had joined BJP in January this year.
Ganguly alleged that despite repeated attempts her name could not be enlisted in voters' list in Kolkata.