How many months for dt idt self study from scratch

Mohit (CA) (755 Points)

11 June 2013  

Dear All,

My attempt is May 14 and I jus wanted to know how many months would it take for both DT and IDT to finish atleast once completely and thoroughly. Also i am confused as to which is the best book for DT Self-study whether Vonod Gupta or Manoharan and IDT whether Bangar or the new author Vinet Sodhani.  

Would really be grateful if you all could help me on this.

Mohit