What was David Dhawan doing at 'O Teri' launch?

In fact, on the same day, Dhawan had launched the first look of his film Main Tera Hero starring son Varun Dhawan. Considering the fact that the two films have a similar flavour and are releasing around the same time, it was strange to find him at the event.

A little digging revealed that Dhawan was there to support Salman Khan who is the presenter for brother-in-law Atul’s film. We all know of David’s fondness for Sallu.