London/Islamabad, 8 Jan, 2008 : Addressing a news conference in London on January 8th, Bilawal Bhutto Zardari, The 19-year-old son and political heir of Benazir Bhutto, said that he had no leadership aspirations, but had simply answered a call. Bilwal will continue his studies in Oxford while his father, Asif Ali Zardari, takes a more active leadership role in the Party. However, he said that he took over the leadership, as it was the need of the hour.