  Kyun! Ho Gaya Na  is a situational romantic comedy -- a simple story about love and life. Diya Malhotra is an idealistic, sensitive girl whose childhood was spent in the coffee plantation town of Coorg. Her father, who single-handedly raised Diva after his wife passed away, decides that Diva should travel to Mumbai to help his friend Raj Chauhan, a confirmed bachelor, run a small orphanage that he has in his home. Diva will stay at the home of the Khannas, who also are friends of her father. Diva then meets Arjun Khanna, a seemingly free-spirited, fun-loving, adventurous guy. The two soon realize, however, that they will be staying in the same house since the Khannas, her father s friends, are Arjun s parents. The friendship that develops between Diya and Arjun and their opposing views on love and marriage are at the heart of this film.