text: hi i am in xii preparing for engineering exams without coaching. please syggest me some tips and books. sumit? i have been a good student and qualified first round of ntse scholarship exam. try tata mcgraw hills, h.c. verma, o.p. aggarwal . main thing is that u clarify ur concepts . dont go 4 too many books. try 1 or 2 reference books . not more than that .