MUMBAI: While shooting for his film Knock Out recently, Irrfan Khan was so shy of dancing in front of co-star Kangna Ranaut that he had to ask her to leave him alone.

The incident happened while Irrfan was practicing his steps for a song but could not do it properly. Kangna, who was watching Irrfan practice, was making him all the more nervous. Irrfan who is not a smooth dancer like Kangna, had to ask for some privacy before he could get his steps right. Finally, with the help of the producer Irrfan requested Kangna to allow him some privacy so that he could stop fumbling and the pretty actress did so sportingly.

Knock Out stars Sanjay Dutt, Kangna Ranaut and Irrfan Khan in the lead and is produced by Sohail Maklai.