The Pakistan Muslim League-Nawaz is making all efforts to give a rousing welcome to Nawaz and his daughter Maryam Nawaz on their arrival in Lahore on Friday.
Bilawal Bhutto raised the 'Musharraf's a murderer!' slogan in front of the charged crowd of PPP supporters in the southern Pakistani town of Garhi Khuda Bakhsh.
Bilawal Bhutto Zardari said besides his mother Benazir Bhutto, Musharraf also had Nawab Akbar Bugti killed.
Al-Qaeda's slain chief Osama bin Laden had shifted to Afghanistan to supervise a plot to assassinate Pakistan's former premier Benazir Bhutto and then military dictator Pervez Musharraf.
Zardari has held former military dictator Pervez Musharraf personally responsible for the murder of his mother, Benazir Bhutto, as the country observed her 10th death anniversary.
Ten years after former Pakistani PM Benazir Bhutto, the first woman to lead a Muslim nation was killed in Rawalpindi the unanswered questions about her assassination still fuel conspiracy theories.
An estimated 20,000 people gathered at the shrine in Garhi Khuda Baksh in the Bhutto family stronghold of Sindh province, television images showed.
The children of Pakistan's assassinated prime minister Benazir Bhutto today voiced their disappointment over the verdict by an anti-terrorism court, saying there would be no justice.
The two-time prime minister, was killed along with more than 20 people in a gun and bomb attack in Rawalpindi's Liaquat Bagh during an election campaign rally on December 27, 2007.