Since I don't know the story itself, I can't say for sure about its significance. But generally, stories often carry cultural, moral or historical significance.
Since I'm not aware of the 'Mehndi Tere Naam Ki' story, it's difficult to determine the main plot. However, if Mehndi is a person's name, perhaps the story could revolve around their relationships, dreams, or a journey they undertake. It could also be related to the significance of mehndi (henna) in a cultural or symbolic way.
The 'Me Tere Naseeb Ki Barish' novel is centered around two characters whose paths are intertwined by fate. It explores themes like hope, perseverance, and the search for true love. The story has many twists and turns that keep readers engaged.
I haven't heard about this 'main lakshmi tere aangan ki' story in detail. It might be a story from a particular regional or cultural context. Maybe you could ask someone who is an expert in the relevant culture or literature.
I'm not entirely sure as I haven't read the novel specifically. But from the title, it could potentially be about the relationship between faith (iman), hope (umeed) and love (mohabbat).