To Which book should we give more preference when studying for physics for aiims so that we can clear the concepts much better ??

In aiims maximum quests including assertion reason type were from NCERT textbook. So i would auggest you to study ncert.  If you haven't studied it. You can go with your coaching notes and practise the previous years question papers. Do solve numericals daily and revise regulary the concepts you have read.. Thats more than sufficient to have a great score in aiims ug entrance exam. .. ..
Good luck..