"Burning of Quran (is) stupid... why is this silly man getting so much attention?" Kapur posted on micro-blogging site Twitter.
Christian pastor Terry Jones has caused a furore by announcing plans to set fire to the Quran at his Florida church. Ever since, several notables including US President Barack Obama have condemned the act.
Farah, a devout Muslim, called him a "mad pastor".
"To the mad pastor out there who thinks by burning a holy book the Quran you can burn our faith, you have a hope in hell. You can burn pages but our faith is in our hearts and soul and you cant take that away," she posted on her Twitter page.