I'm not sure there is a specific established meaning for this exact phrase in English literature. It could potentially be some sort of made - up or very niche expression.
There is no truly positive meaning for 'hot cuck story' in the traditional sense. If we were to force a positive spin, perhaps we could think of it as a story that is full of unexpected twists and turns, like a 'hot' or exciting plot, but leaving out the inappropriate relationship implications of the 'cuck' part.
In English, a novel typically refers to a book-length work of fiction that tells a story. It can cover various themes and genres. For example, romance novels, mystery novels, etc.
'Kamukta' could potentially be a misspelling or a very specialized, regional term. Without more context, it's difficult to be precise about its meaning. 'Hindi' is widely spoken in India and is known for its rich literature and culture.