In the photo released by Bilawal, it can be seen that he is sitting on the sofa with his nephew in his lap.
Bilawal has written 'My Heart' in the caption of the photo.
It may be recalled that a small guest had arrived at the house of Bilawal's sister Bakhtawar Bhutto Zardari and her husband Mahmood Chaudhry on October 10.
He later said that his son's name was 'Mir' in relation to his late uncles and 'Hakim' in relation to his grandfather, thus his full name became Mir Hakim Mahmood Chaudhry.