The Sindh High Court issued notices to Musharraf and MQM chief Altaf Hussain, both in London currently, as also to provincial interior minister Waseem Akhtar and some others on Thursday. They were all asked to appear before a two-judge bench during the next hearing scheduled for August 31. The Sindh High Court was hearing a petition and three related applications, including one that asks for the former President be made a respondent, on violence that rocked Karachi on May 12, 2007.