"Congress doesn't have faith in their own elected MLAs and that is why they are taking such steps. It is laughable. We have never invited any Congress MLA to our party. Whoever joined TMC has done so on his or her own," he said.
Roy also said an anti-defection law already existed to deal with such situations.
West Bengal Congress chief Adhir Chowdhury yesterday proposed that the party's 44 MLAs sign court papers declaring they would not leave the party.