WASHINGTON - The Sindhi Association of North America (SANA) aannounced Tuesday it will hold its 24th annual convention in Dallas, Texas, July 3-6. The annual conventions of SANA, the largest representative organization of Sindhis living in USA and Canada, draw a large number of people.   SANA president Aziz Narejo said a number of programnes have been planned at this year's convention that include sessions for youth and women, a medical seminar, "Sindhi Adabi Mehfil" and two nights of Sindhi music. The sessions also include an awards ceremony for talented students and other community members who have to their credit extraordinary achievements, he said. Prominent scholars, educationists, political leaders, writers, intellectuals and distinguished guests from Pakistan and India are also to attend.