LAHORE - Former prime minister Nawaz Sharif along with his daughter Mayram Nawaz , son in law Capt (retd) Safdar and grand-daughter will leave for London today (Tuesday), say media reports. Sharif and his family members will fly from Lahore through a private airline, the reports add. Sharif’s wife, Begum Kalsoom Nawaz is undergoing treatment for her cancer disease in London . It be mentioned that the Accountability Court yesterday had allowed exemption of one week to former prime minister from appearance in the NAB references which are at the stage of recording the prosecution evidence.