LAHORE - Prime Minister Nawaz Sharif will visit Karachi on August 1, reported a private TV channel. This will be his first tour of the metropolis since he took office in June. The one-day tour was earlier scheduled for July 31. PM Nawaz will meet Sindh Governor Dr Ishratul Ebad and Chief Minister Qaim Ali Shah, while a meeting with PML-F head Pir Pagara is also a possibility.