Kolkata: TMC Rajya Sabha MP Derek O'Brien appeared before the Kolkata Police on Wednesday in connection with a scuffle at party leader Abhishek Banerjee's office here over the removal of a billboard bearing Trinamool Congress signage, an officer said.
O'Brien arrived at the Shakespeare Sarani police station around 10 am, followed by Banerjee's personal assistant Sumit Roy, he said.