Direct tax ca final guidance required nov-15

Dear freinds and professionals i am going to appear in nov-15 exam please suggest me the good strategy to crack Direct tax. i have not taken any coaching and preparing from my self so i want to know which book is to be used for DT as you know the time is almost 2.5 month so please consider this thing also so i can revise also and which topics should be finish first please suggest the good and practicle strategy..