Roy, who in January 2015, was summoned by the CBI in connection with the Saradha chit fund scam, said, "The fascist attacks will intensify in the days to come as we have opposed the Centre's anti-people decisions."
He, however, declined to reply to queries on whether central agencies were being "used" by the Centre to pursue vendetta politics against the TMC.
The CBI had issued summonses to two TMC MPs, Sudip Bandyopadhyay and Tapas Pal, on December 27 in connection with the alleged Rose Valley chit fund scam.
Asked what he thought of the announcements made by Prime Minister Narendra Modi in a televised address on December 31, Roy said, "What we saw was a budget speech. If you want to make such announcements, you need to make them on the floor of Parliament. Then only we can say if we are in favour of such decisions or not.