I haven't heard of 'kahan kahan se guzar gaye' before. It might be a story that is not widely known. If it's a personal or local story, it would be difficult to tell without more context. You could try to give some more details about it, like where you heard it from or what kind of story it is supposed to be (e.g. a love story, a ghost story).
I'm not entirely sure as 'yum stories' is a bit unclear. 'Kahan kahan se guzar gaya' could roughly mean 'has passed from here and there'. Maybe it's about some stories that have come from various places or experiences.
I haven't heard about a particular 'aa dekhen zara' full story. It might be a title of a local folktale, a short story from a specific community, or perhaps even a name given to a personal narrative. Without more information, it's difficult to tell the full story.
I don't really know this story. It might be something unique to a certain community or area. It could be about travels, as 'guzar gaye' can imply passing through. But that's just a guess without more details.
I don't really know the story of 'aa dekhen zara'. It could be a unique story from a particular culture or an individual's creation. Maybe it has themes like love, adventure or mystery, but without more details, it's just speculation.
Yes, it is. 'Mein Kampf' presents Hitler's ideology and personal views, making it a non-fiction work. However, its content is highly controversial and repugnant.
I'm not really sure if 'apny aisy naseeb kahan' is a popular complete novel as I haven't come across it very often. It could be popular in certain regions or among specific groups of readers who are interested in the type of story it might tell.