Zubair, first off, you should forget about novels if you are really worrying about improving your written expression. Why? Because writing something formal or academic is a complete different task than that of informal writing.

Even the usage of it's instead of "it is" is discouraged in the competitive examinations.

I would suggest you to read good newspapers daily. Start of with BBC or the New York Times, for they do not try to show-off by using difficult, complex jargon in their newspapers unlike Pakistan's newspapers. Once you become comfortable reading those newspapers, switch to the Pakistan's newspapers like DAWN or The Daily Times.

This whole process will furnish your writing skills, especially expression.

If you really want to read something other than news, I would highly recommend you to read English poems/poetry. It will unlock many different aspects of your imagination. Furthermore, you will be able to express yourself pretty well.


Regards.