Your score in PCM is quite good .. you seems to do very good in jee exam 2011..The only suggestion i wud like to give is make your concepts very strong and practise as much as possible .. Join some coachings for proper guidelines and also join some test series .. jus to judge your level of preparation. Study hard .. and focus only on jee preparation for one year. All the very best for your future !.
Check out the links for best books: http://www.askiitians.com/Important-books-iit-jee.aspx
You dont need to do much books .. these are sufficient if you do thm with concentration and interest.
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