The 38-year-old actor took to Twitter to announce the news and said that the would-be mother is healthy and doing fine.
"I am delighted to announce that my wife is a very healthy 13 weeks pregnant and we are expecting twins. Regards, FK," Fardeen posted.
"Thank you all. Lots of love and luck to you too," he added.
Fardeen married Natasha, yesteryear actress Mumtaz's daughter, in December 2005. The actor was last seen in 2010 film "Dulha Mil Gaya".