I M currently a 10th class student and i m going to crack iit jee in 2013. For it i m going to an institute, before iti will hve 2 months left.suggest me how to utlilize that free time,i want to study some iit relted books?pls prefer meeeee?????????

See if u really want to utilize the time than read NCERT books of class XI. This will help u in future. I would suggest u not to read any other book as NCERT will ensure ur basics and after reading NCERT u can read competitive books. 
Best of luck for your bright future. 

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Brother my suggestion is that generally we won't read the topics in tenth class such a way that they will be useful in further studies ,what I mean to say is that of course we read but the way is different generally ( not for all ). So in two months for few time refer all the topics of physics and others subjects of tenth class of course u'll get bore as u have been studying them. And then refer ncert books of XI.

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