I doubt it would happen because of Physics and Chemistry. Biology one can easily score high using NCERT but for Physics and Chemistry you need to go beyond the scope of NCERT to well solve the equations in time and with accuracy. As NCERT at your fingertips is purely based on NCERT, it kind of helps you get a college but not 550+.

Students scoring higher than 550 read multiple books, with precise notes and coaching because its required at most times , the competition being tough.