However, Pakistan President Asif Ali Zardari was upset as he doesn't want his 24-year-old son to marry a woman who is 11-year-older than him and also a mother of two daughters, reported the tabloid.
According to the report, the president found the two love-birds in a compromising position at their residence. The president reportedly had tried to put an end to their relationship after allegedly using his political power and government machinery against Khar's husband, millionaire businessman Firoze Gulzar.
However, Zardari failed in his effort to dissuade Hina from going ahead with her relationship with Bilawal as she has decided to end her marital relation with Gulzar and to settle in Switzerland post her marriage with Bilawal.
The tabloid even revealed few content from one of the hand-written letters which were sent by the Pakistan foreign minister to the young Chairman of the Pakistan Peoples Party (PPP).
Hina, according to the tabloid, wrote, "The foundation of our relations is eternal and soon we shall be just ourselves." The tabloid also claimed that Bilawal had threatened to quit PPP when he was advised by his father to end his relationship with Hina.
According to the Bangladeshi tabloid, Zardari fears that such a move by his son will not only jeopardise Bilawal's political career but also cause political doom for the ruling PPP.