President of Pakistan Arif Alvi administered the oath to the PPP Chairman.
Prime Minister Shehbaz Sharif witnessed the oath-taking ceremony here at the Aiwan-e-Sadr, which was attended by former president Asif Ali Zardari, ex-prime ministers Yousuf Raza Gilani and Raja Pervaiz Ashraf, and a large number of parliamentarians, party workers, and government officials.
The close family members of Bilawal Bhutto including his sister Aseefa Bhutto and maternal aunt Sanam Bhutto – the sister of former prime minister Benazir Bhutto, also attended the ceremony.
The development comes after Adviser to Prime Minister on Kashmir Affairs and Gilgit-Baltistan Qamar Zaman Kaira said last week his party chairman would take oath within two days.
Bilawal was present at the time when the initial federal cabinet members took oath, however, he did not take the oath.