Hi.. As such, for DT, there is no need to go for any coaching... But IDT strictly requires Coaching.,...

If ur attempt is in MAY 2011..., i would refer SINGHANIA for u, as it takes atleast 1-2 months to finsih off the syllabus wid extreme knowledge from this book... But if ur is NOV 2010 attempt, better u go for PADHUKA, as it consumes lesser time and u can clear the attempt too....

For marks wieghtage for NOVEMBER 2010, CLICK HERE

Thanx Dhiraj...