EDS by Imtiaz Shahid is all that you need.
But the best way out is to go through the past papers of last 15 years at least and find the relevant information from google or wikipedia etc. In this way you will have the command over the most recent developments in the field of science and accurate knowledge.
There are certain mistakes in Kashmiri's book so i don't recommend it.
You should google every topic its easy and the fast way out.
Best of luck