As drama continues in West Bengal over an unexpected visit of the CBI officers to Kolkata - BJP escalated its attack on didi. Ravi Shankar asked how a top cop can join the dharna? Launching a scathing attack on Mamata govt Ravi Shankar asked the top cop on why he did not answer CBI summons for years. The BJP even asked Mamata if she was protecting the top cop out of a fear that Kumar could spill the beans on some corruption in Sarada scam. Ravi Shankar even asked the Kolkata top cop on how a top police officer could join a Dharna? The MHA has also sent a notice to the WB govt asking them to explain the same.