As, there are almost 5 kinds of subject in Essay paper.
Religious,
Economical,
Philosophical,
Literature and current affairs related.

I like to write the topics which are related to religion, philosophy and literature.
These subjects suit my nature of writing.
I want to ask, if i write an essay in paper, related to religion, philosophy and literature. Will it be risky?

Depends on what you mean by 'risky'. If it means yielding low marks then NOT AT ALL, because you don't get low or even high marks based on the topic/category of the essay. For me it would be 'risky' to attempt such a topic because A) I am not that much into philosophy or even literature ke I can write a CSS level essay and B) I feel it far more easy to prepare for essay along with current affairs [aik teer se do shikaar].

But my friend as far as you are concerned, I have seen a piece of your work and given the fact that you are in FSc, prepare the category with which you feel at home. You are not marked on the category of the essay rather how you structure your essay and build your arguments for any given topic of an essay may it be philosophical, religious, literary or even current affairs related.

P.S. I liked your choice of tags

Oh! Thanks dude. Yes, i like literary quotation to write on. =)