Dinesh madan it book different from study module

Hi,

I'm about to give 2nd group in May 2013 (next week). I was studying chapters of IT from Dinesh Madan book, and I compared it with the Study Module. Most of the concepts given in Dinesh Madan are completely different, abridged you may say, from the Module. The Module uses more technical language, and madan book is pretty casual. 

Now,i know its for better understanding, but when I am going to write proper definitions, what do I do? I have only 1 week left, and I cant all of a sudden change to Study Module... Please help me, and tell me if studying from Dinesh Madan's casual book is enough to pass IT

Thanks