Shit reasoning like this from atheists like you is why I cringe to admit I'm an atheist when people ask me about my religious beliefs. It is entirely conceivable that he saw visions of math, produced by his own subconscious, and attributed these visions to a god. It would not be terribly dissimilar from any artist who attributes their creative visions to a muse. Do you accuse any such artist of plagiarism too?
As an atheist myself, I do not believe in god and I do not believe Ramanujam got it from god. However, it does not change the fact Ramanujan thought he got it from god because he could not necessarily explain how he made those intuitive leaps.
> ... is just proxy for "I coped it from someone".
How can you be so confident in this claim?