"There would be a lot of hype amongst my family."
D'Silva said he admired Khan's work as he was "changing the face of Indian cinema".
"In India there's a lot of stigma around taboo topics like disability, women's rights and homosexuality, but his vision is to make them less taboo through cinema."
The 18-year-old speculated the Bollywood star could be in New Zealand to promote his new film, Dangal, or for diplomatic reasons.
"When Bollywood stars are in New Zealand it's often a diplomatic thing, for relations or to promote New Zealand in an Asian market."
Khan had more than 19 million followers on Twitter and 15 million likes on his Facebook page.