Kolkata, Nov. 12 -- The Calcutta High Court on Thursday reserved its verdict on a petition filed by Trinamool Congress national general secretary Abhishek Banerjee, MP, challenging the state government's decision to downgrade his security cover from Z-plus to X category.

During the lengthy hearing, Justice Krishna Rao raised several questions about the state's security review mechanism and its response to a series of alleged attacks on Banerjee and his family following the reduction in his security cover.

At the outset, Banerjee's counsel told the court that the new government was sworn in on May 9 and his client's security cover was downgraded the very next day, on May 10.

He submitted that Banerjee had been enjoying Z-plus security sin...