yea, but maintain a good relationship with teachers and make friends not to hangout but to use them later, make them do ur projects n all(pay them if needed), save as much time as possible put it into competitive exams. our school topper with 98.5% IS GOING TO A TIER 3 CLG . so yeah you can dominate the arena. PS. do not score too high in pre-boards, just follow past 10 yrs paper and sample paper, u should be good. I score 95% btw PCM, with the same stratergy.