A Kolkata based lawyer has written a letter to West Bengal Advocate General Kisohre Datta seeking his consent to initiate contempt of court proceedings against Rajya Sabha MP and All India Trinamool Congress leader Derek O'Brien for his tweets against Justice Kausik Chanda of the Calcutta High Court.Pursuant to Section 15 of the Contempt of Courts Act, 1971 the consent of the Advocate General...