25 January 2009
If you have not yet purchased it and started to study, then i will suggest you to go for Girish Ahuja's Book, as it is more self explanatory, then other books. For further way of study, Mail me at tarun2507@gmail.com. I will send you the tips for DT and IDT paper. It will help you a lot, as it is the personal experience of mine and some others.