Oath-taking ceremony of new BJP govt in Bengal to be held on May 9: Party state unit chief Kolkata, May 06: West Bengal BJP president Samik Bhattacharya on Wednesday announced that the oath-taking ceremony of the new government in the state will be held on May 9. Bhattacharya told reporters that the swearing-in ceremony will take place at Brigade Parade Ground in central Kolkata from 10 am. “The new BJP government will take oath on May 9 at 10 am,” he said.