The lawyers will boycott proceedings at the Sindh High Court on May 12 to commemorate the killing of their colleagues, said PBC in a statement here.
The lawyer demanded of the Chief Justice of Pakistan Nasirul Mulk to take suo motu notice of lawyers killing on May 12, 2007.
They regretted that not a single killer involved in carnage of May 12 has been apprehended so far.
Over 45 people were killed including lawyers and dozens wounded on May 12, 2007 when a political rally was held the day then Chief Justice of Pakistan Iftikhar Mohammad Chaudhry landed at Karachi airport to address the Karachi Bar Association.