Trinamool Congress chief Mamata Banerjee has launched yet another campaign against her archrival and West Bengal Chief Minister Buddhadeb Bhattacharjee. And this time she's demanding the chief minister's arrest.

Mamata says the CM should be arrested for running what she calls a torture campaign to gag the voice of the Opposition after his party's defeat in the Lok Sabha elections.

As Trinamool activists protested outside the Writer's Building the Chief Minister hit back at Mamata, comparing her antics with a circus show.