Dear Student,
Your score in 11th is good . But also one thing is important that 11th class will not effect your 12th class results. The syllabus of 12th is totally different from 11th class. So no need to worry. But you just need to focus on your studies of 12th class . You can do more better.
I am suggesting you some top books to prepare for 12th and also for competitive exams . These are mentioned below.
Hope this helps.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile