First I would like to thank you for helping me in overcome this problem. The main problem is that i never read books i tried to understand each and everything numerically and the other thing whenever i read a sentence i feel that my mind is not able to read that sentence but my eyes are reading.
That makes me feel awkward when you are reading something but your mind is not able to grasp those things.
I started my preparation of GRE and Toefl with reading novels and newspapers but i think i understand the meaning but when it comes to read books related to my research area (which i want to learn) its hard as i am not able to understand lucidly to the author.
So If you think is there any way to resolve this problem then i will be grateful to you.