Mohammed Ali Jinnah's daughter Dina Jinnah got married to a Parsi Christian Neville Wadia. Their only son was Nusli Wadia, who adopted Zorashtrianism. He is chairman of Bombay Dyeing, one of the major textile houses of Mumbai, which also has substantial interests in real estate business.
http://www.quaid.gov.pk/life_quaid06.htmNow wonder who the 'grandson' that the posted video mentions is.
An interesting aside:
Dina had fell out with Jinnah over her marriage. Jinnah is believed to have told Dina that there were millions of Muslim boys in India, and she could have anyone she chose. Dina is said to have reminded her father that his wife (Dina's mother Rattanbai), had also been a non-Muslim. She apparently replied: "Dear Chutchudamani, there were millions of Muslim girls in India. Why did you not marry one of them?" Jinnah is said to have defended his marriage with a Paris saying she became a Muslim after the marriage.
http://en.wikipedia.org/wiki/Dina_Wadia