India, Aug. 24 -- Actor Mohsin Khan, best known for playing Kartik in Yeh Rishta Kya Kehlata Hai, announced his engagement to Tamanna on social media. The actor surprised fans by posting the pictures from the ceremony and writing a long, beautiful note expressing love for his fiancee. Excerpt from the note read, "Allahumma baarik.Ya Allah So this crazy beautiful confident sensitive girly - always laughing and teasing, hoping and praying, always dancing and singing - was written for me in the heavens"...