In iitjee every year unique problems are asked..still then everyone says to solve previous years problem..! what is its use.? isnt it better to revise study material provided by institute than to waste tym on previous years..??

no my dear friend its not at all a waste job because by solving previous year problem you will be getting idea of the question and if you are able to solve it in time limit then its good for you it will boost your moral confidence.moreover the study material are prepared according to previous year pattern of iitjee.so you are at no loss.
keep trying to solve the problem in time limit and see if you have passed the cut off of that year.
thanks and regards
sunil kr
askIITian faculty