Yeh Rishta Kya Kehlata Hain actor Rishi Dev posted a video some time back on social media. In the video, both main leads of the show - Mohsin Khan and Rishi Dev are seen having a physical fight. Rishi Dev, who plays the character of Naksh in the show, was seen fighting with his brother-in-law, Kartik Mohsin. Before we tell you the reason why these two got into a fight, have a look at the video.