If u are living in Delhi or u know someone in Delhi then I can tell u the place where u can get the latest BT material for approx. Rs 1500-Rs2000.

 

But one thing u should always keep in mind it does not matter which study material u hav, all that matters is what u hav gained from that material.

 

Try to concentrate on the concepts & then go to the questions, don't get disheartened & don't loose hope if u r not able to solve them instead go to the concepts again & then try to find the solution. If u r not able to solve a question that day then try solving it after 2-3 days. With a fresh mind u will be able to interpret it in a better way.

 

U hav many books study the concepts first from there,then move on to ur study materials & then try to solve the questions of these study materials/packages.

ALSO do buy a 30 years question bank for IIT like mtg or arihant one's etc. It is easily available on any good bookshop. Buy it after 2-3 months so that it includes this years question paper with solution.