VTUEEE

Well, I cleared VITEEE in 2012. I had not prepared for any entrance exam during my entire class 11th- class 12th time period. I didn't even fill up IIT form. So, the best shot that I had was to clear VITEEE and save myself from one more year of PCM torture and I did comfortably without studying much. The only key is to have all the concepts clear as much as possible. At least, be thorough with physics and particularly chemistry because chemistry is pretty easy in the paper. Just give your best in the board exams. Work hard with dedication for every subject and you are halfway there. Then, just after the board exams get over, buy this book titled, AIEEE in 40 days' for Physics, Chemistry and Maths. It has some awesome questions, certain to add spice and flavor to your preparation. But, first refer to Class 12th chapters because the syllabus of VITEEE comprises of only class 12th PCM. I hope you do well.
All the best for your boards and VITEEE. Good luck.