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.
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.
Since I still don't have enough information on 'Do dil bandhe ek dori se', I can't give the exact story details. But if it's a love - themed story, it might follow the common pattern of two people meeting, having some challenges in their relationship, and finally coming together. For example, they could be from different backgrounds, and society or family tries to keep them apart, but their love overcomes all.
I'm sorry, I'm not familiar with the specific 'dil se di dua saubhagyavati bhava' story. You may try to search for it on some cultural or story - related websites.
There is not enough information to accurately tell the full story of bin bulaya mehman. It could potentially be a story passed down within a certain ethnic group or area. Maybe bin bulaya was a traveler who visited a place as a mehman (guest) and had various adventures, experiences related to the local culture, traditions, and people, but again, this is all speculation without further details.