Dt & idt questions

quite a chance.. and PM is a must

What is the relevance of Study materials of DT & IDT ???

Many students ignore SM but follow PM and other writer's book.

you can never doubt the relevance of SM in case of any subject.. but given the time constraint,, students 'avoid' it (i wont use the term 'ignore'). go for the recent mat or any writer's book. but do solve PM,, its a must.