HI, 

Since you have solved one book, I suggest you to go through your NCERT Once more and solve as many previous year papers you can. Also you can refer to books to strengthen your basics . Refer concepts of Physics by H.C. Verma. This books helps you in Jee advanced. Since JEE papers are most of applicaticationbased, the more you solve model questions , the more you get the type of questions that can appear in exams. Also solve as many application based problems from ncert and other book. For problems in physics refer I.E.Irodov , Nelkon and parker physics, halliday-resnick-walker by wiley publications these are few books good for IIT JEE preparation. D.C.Pandey by arihant publications is a good book by indian author. Also for aptitude you can refer Krotov's Physics Book. 

All The BEst! For more queries, leave a message! :)