Bilawal, 26, was congratulated on twitter by his father Asif Ali Zardari, and his sisters Aseefa Bhutto Zardari and Bakhtawar Bhutto Zardari.
In his tweet, Zardari congratulated Bilawal and said by graduating with an MA from Oxford, he has followed in the footsteps of his grandfather Zulfikar Ali Bhutto and mother Benazir, Dawn reported today.
"Congratulations to my son @BBhuttoZardari for following in SZAB and SMBB footsteps and graduating with an MA from Oxford," Zardari tweeted.
"Congratulations @bbhuttozardari for getting his MA!," Aseefa tweeted.
Bilawal was a 19-year-old Oxford undergraduate when his family named him chairman of Pakistan's oldest dynastic party after his mother Benazir was assassinated in 2007, months after she returned to Pakistan from eight years in self-exile.
Earlier, there were reports of differences between Bilawal and his father Zardari in the media, suggesting that the two did not agree over party matters. Both the leaders, however, have rubbished the rumours, saying it is just a hype created by the media.