Mumbai, Sept. 17 -- If there are two stars who are on a roll in terms of trolling each other on social media in a friendly way, it is Arjun Kapoor and Katrina Kaif. Often Arjun leaves hilarious comments on Katrina's stunning photos. Even Katrina returns the favour and finds the perfect opportunity to seek redemption. Their friendly banter has left netizens impressed with their camaraderie. This time, once again, Arjun has found his way to Katrina's comments section on Instagram and has left netizens laughing.

Last night, Katrina dolled up for an event in Mumbai and shared some stunning photos of herself that have left us all drooling. Clad in a thigh high slit, plunging neckline maroon gown, Katrina looked like the ultimate diva. While e...