"We did approach Sonakshi for a special song, which is not an item number in the film. She really liked the song and was interested to do it, but she hasn't signed on the dotted line yet," Lingusamy told IANS.
The special number is expected to be shot next month in Mumbai, where most of the film's shooting has taken place so far.
The film also features Samantha Ruth Prabhu, Vidyut Jamwal, Manoj Bajpayee and Rajpal Yadav in important roles.