How can Ajay play father to an 18-year-old?

We had recently reported that Kamal Haasan will be playing the lead role in the Tamil remake of Malayalam film Drishyam. This Malayalam crime thriller in which Mohanlal played the father of an 18-year-old daughter is one of the biggest hits in Kerala. And now, it looks like the film is quite hot on the remake circuit in other languages as well.
We hear that Venkatesh will play the lead in its Telugu remake, which will be directed by Tamil actress Sripriya, and also that Ajay Devgn has reportedly been approached for the Hindi version.

Sources tell us that not only is Ajay busy with back-to-back assignments like 'Action Jackson' and 'Singham 2', but he may also hesitate to play father to a teenager. While the makers maintain that Ajay is the first name on their wish list, the trade says that there is also a back-up star ready for the same project.