LAHORE - Two different accountability courts on Wednesday exempted Prime Minister Muhammad Shehbaz Sharif from personal appearance for one day in three references. A legal team, on behalf of Shehbaz Sharif, filed the applications before the courts for his exemption from personal appearance for one day in view of his engagements.  Pakistan Muslim League-Nawaz leader and the joint opposition's nominee for Punjab chief ministership Hamza Shehbaz also appeared in two references and got his attendance marked.