No, it isn't. 'Ye Un Dino Ki Baat Hai' is a work of fiction that may draw inspiration from various elements but is not based on a true account. The characters and events are crafted by the writers' imagination.
I'm not specifically familiar with this novel titled 'man morakh ki baat na mano'. It could potentially be a regional or less - well - known work. Maybe it has a deep cultural or moral message within its story.
Well, the significance of 'yeh un dinon ki baat hai real story' can be multi - faceted. Firstly, if it's a real story from the past, it can serve as a historical record of sorts, even if on a very small scale. It might document the lifestyle, values, and beliefs of a certain group of people at that time. Secondly, it can have an emotional significance for those who are related to the story, either directly or through a shared cultural identity. It could be a story that has been passed down to teach important lessons, like how to deal with hardships or how to maintain family bonds. And finally, it might be important in the context of a larger narrative, contributing to the understanding of a particular region's or community's overall story.
Without more context, it's hard to tell the full story of 'yeh un dinon ki baat hai'. It might be a story about old times, perhaps reminiscing about certain events, relationships or situations that happened during a particular period in the past. But this is just speculation.
I don't really know the significance as the information is so scarce. It could be significant to those who are directly related to the real story it's based on, like family members or friends of the people involved in the original events.