A war of words broke out between the Trinamool Congress and the BJP on Thursday over West Bengal Governor Jagdeep Dhankhar being accorded a ''Z'' category VIP security cover by the Centre, with the ruling TMC accusing the saffron party of trying to demean the state government. The West Bengal BJP welcomed the move claiming that the heckling of Union minister Babul Supriyo on September 19 inside the Jadavpur University campus proved that law and order situation has broken down in the state.