Rani Mukerji came up with a special anthem to promote her upcoming film Mardaani with a message that women are as strong as men. At the launch event Rani was asked if her movie which is a cop drama has any relevance with Ajay Devgn‘s Singham Returns which is also a cop drama, the actress answered by saying that both the films have huge differences and hence have no similarities. Watch the entire video to know more.