Respected sir/mam i m studying in 12th science (PCM) n i have not started any special coaching for competitive exams so what do i require to do to crack these examinations?

Dear Harmanjot Hope fine ans doing well in your studies. First please come to the picture that all the competitive exams are not that much difficult. Actually they will mostly from the fundamentals of the your 6th to 12th class only. All you have to do is please prepare your basics well and see the previous question papers and while solving please remind your fundamentals once again. See how your confident level increse after that. Please post as many questions as you can to know your answers very fast. All the Best Haamanjot!!! Regards Iitians Experts Nagaraju