There isn't enough information here to accurately tell the 'kyun utthe dil chhod aaya' real story. It might be related to a personal experience, a piece of literature, or a cultural anecdote. Without more context, it's hard to say.
The story of 'dil se dil tak' likely revolves around relationships. It could involve the meeting, falling in love, and facing challenges in the relationship of the main characters. Maybe there are elements of family interference, personal insecurities, or misunderstandings that the characters have to overcome. Without having watched it in detail, it's hard to say exactly, but most such shows follow a pattern of exploring the various aspects of love and relationships.
Since I haven't seen the full story of 'dil se dil tak', I can only assume it's a story about deep emotional connections between people, likely in the context of love, with the characters experiencing various emotions and situations that test their bond.
I'm sorry, I'm not very familiar with the specific 'dil se dua saubhagyavati bhava' story. It might be a relatively niche or regional story that I haven't come across yet.
Since I'm not familiar with the 'dil ki nazar se khoobsurat' story, it could be about seeing beauty through the eyes of the heart. Maybe it's a story of a person who discovers the true beauty in others or things that are often overlooked by the ordinary eye, but this is just speculation.
As I don't know the story, I can't give details. However, if it's a story about relationships, perhaps it could involve a situation where someone left unexpectedly, causing emotional turmoil for another. Maybe there were misunderstandings or external forces that led to this 'dil chhod aaya' (leaving the heart) situation. But again, this is just guesswork.