Diya Malhotra的母亲自小过世,与父亲Coorg Malhotra相依为命,是一个相信缘分,相信爱情的女孩。Arjun Khanna是一个崇尚自由精神,爱玩,爱冒险的家伙,可是他不懂爱情,把自己终生伴侣的选择权交给了自己父母。在偶然的机会,Diya与Arjun相遇了,友谊开始在他们之间发生,慢慢地,爱情的种子惭惭发芽,但是Arjun的爱情和结婚观念却阻碍着他们之间的发展,他们以后的命运到底如何呢?'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.