TMC May Be Right to Question CBI's Narada Scam Probe But its Methods of Protest Are Unhealthy TMCâs allegation that CBI has acted in a partisan manner by not taking in two other accused politicians who joined the BJP seems to have some validity. But the party and its chief's conduct invites criticism. TMC activists protest outside the CBI office Nizam Palace over the arrest of party leaders in connection with the Narada scam case. Photo: PTI/File Politics6 hours ago In an unprecedented incident a few days ago, West Bengal Chief Minister Mamata Banerjee held a protest outside the offices of the Central Bureau of Investigation (CBI) in Kolkata, supported by hundreds of party workers.