Actor Mohsin Khan feels lucky to feature along with his girlfriend Shivangi Joshi on the show Yeh Rishta Kya Kehlata Hai. Recently he said," “Great friendship, comfort level and understanding are the key ingredients for a great on-screen chemistry. I got lucky to have a co-star like Shivangi. We are very comfortable with each other; be it on-screen or off screen. We are extremely good friends well."