Supreme Court Bar Association (SCBA) President Qazi Anwar said the lawyers will go on strike on January 28, a private TV channel reported Sunday. Talking to journalists after the Lawyers Coordination Committee here, he said the Constitution has been violated by not appointing Justice Nisar, adding there are vacancies of judges lying unfilled at all four high courts. Qazi Anwar said the government did not put the SC ruling into action, demanding that the foreign cases against President Asif Ali Zardari should be begun.